Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
Keep your nerve, Peter Manners told himself has to rest on a sturdier foundation than cash reserves just above zero and eviction if he came away from this interview still unemployed. Clay, at the Association of Professional Engineers, who had set up the appointment, hadn't eased Peter's nervousness by admitting, "I don't know what in hell he's looking for. He's turned down every man we've sent him." betray overeagerness. Peter stood in front of the Lex Industries plant He went through it with his composure slipping still further from his grip. This was no way to go into an interview, but doors kept opening before and shutting after him, until only one was left, and the last of He let another bellow bounce off him as he blew out the second breath, straightened his jacket and tie, and walked in as an engineer applying for a position should. "Mr. Lexington?" he said. "I'm Peter Manners. The Association—" of how we live." "I'm applying for a job as engineer." "I know. Are you interested in the basics of how we live?" Peter looked for a hidden trap, found none. "Of course. Isn't everyone?" "Stockpiled you," Lexington said. "Stockpiled you! How much did they pay you?" "That guff about receiving training instead of wages!" said Lexington. engineer. They hired you at a cut wage and taught you things that would be useful only in their own company, while in the meantime you were getting weaker in the subjects you'd paid to learn. Or are you one of get a job with someone else?" Peter considered his answer carefully. Every man the Association had sent had been turned away. That meant bluffs didn't work. Neither, he'd "Impossible, you mean. You wouldn't know a single thing except their procedures, their catalogue numbers, their way of doing things. And you'd have forgotten so much of your engineering training, you'd be scared to take on an engineer's job, for fear you'd be asked to do something you'd forgotten how to do. At that point, they could take you "I finished the course and the increase they offered on a permanent basis wasn't enough, so I went elsewhere—" "With your head full of this nonsense about a shortage of engineers." Peter swallowed. "I thought it would be easier to get a job than it has been, yes." "They start the talk about a shortage and then they keep it going. Why? So youngsters will take up engineering thinking they'll wind up among a highly paid minority. You did, didn't you?" "Yes, sir." "Well," said Lexington unexpectedly, "there Lexington leaned back. "That's quite a lot of admissions you've made. What makes you think you're qualified for the job I'm offering?" "You said you wanted an engineer." "And I've just proved you're less of an engineer than when you left school. I have, haven't I?" "All right, you have," Peter said angrily. "And now you're wondering why I don't get somebody fresh out of school. Right?" Peter straightened up and met the old man's challenging gaze. "That and Peter had the startling feeling that Lexington was rooting for him! "Very good," said Lexington. "Most people only notice the automatic "I'm the only one there is." Peter stared his disbelief. Automated plants were nothing new, but they all had their limitations. Either they dealt with exactly similar products or things that could be handled on a flow basis, like oil or disorganized machinery, Peter noticed that the factory lights high a single unit. These materials handlers, or manipulators, were about the toughest things in the place to design. But they're tremendously useful. You'll see a lot of them around." Lexington was about to leave the side of the machine when abruptly one and before Lexington could react, all three machines were moving away to attend to mysterious duties of their own. Peter tore his eyes away from them in time to see the look of replaced by one of anger. He said nothing, however, and led Peter to a large bay where racks of steel plate, bar forms, nuts, bolts, and other materials were stored. Peter followed numbly as Lexington led him through a maze of machines, each one seemingly intent on cutting, bending, welding, grinding or carrying some bit of metal, or just standing idle, waiting for something to do. The two-armed manipulators Peter had just seen were everywhere, scuttling from machine to machine, apparently with an exact knowledge of what they were doing and the most efficient way of doing it. He wondered what would happen if one of them tried to use the same aisle they were using. He pictured a futile attempt to escape the that was laboring beside him at the moment. Nervously, he looked for an exit, but his apprehension was unnecessary. The machines seemed to know where they were and avoided the two men, or stopped to wait for them to go by. Back in the office section of the building, Lexington indicated a small when they walked back into Lexington's office and sat down. Lexington articles about factories like this one, but planned for ten, maybe They bounced me out of the course, and I re-entered in engineering, determined not to make the same mistake again. But I did. I got too absorbed in those parts of the course that had to do with electrical theory and lost the rest as a result. The same thing happened when I tried commerce, with accounting, so I gave up and started working for one of my competitors. It wasn't too long before I saw that the only way I could get ahead was to open up on my own." Lexington sank deeper in his chair and stared at the ceiling as he a strike that came along and put me right back where I started. My wife, whom I'm afraid I had neglected for the sake of the business, was killed in a car accident about then, and rightly or wrongly, that made me angrier with the union than anything else. If the union hadn't made things so tough for me from the beginning, I'd have had more time girl. "For the next few years, I concentrated on getting rid of as many employees as I could, by replacing them with automatic machines. I'd design the control circuits myself, in many cases wire the things up myself, always concentrating on replacing men with machines. But it wasn't very successful. I found that the more automatic I made my plant, the lower my costs went. The lower my costs went, the more "By creating the proper compounds, with their molecules arranged in predetermined matrixes, I found I could duplicate electrical circuitry in units so tiny that my biggest problem was getting into and out of the logic units with conventional wiring. I finally beat that the same electrical signals, developed equipment to scan the units cyclically, and once I'd done that, the battle was over. "I built this building and incorporated it as a separate company, to Lexington smiled. "Well, automated as it was, it couldn't compete with this plant. It gave me great pleasure, three years after this one started working, to see my old company go belly up. This company bought the old firm's equipment for next to nothing and I wound up with all my assets, but only one employee—me. "I thought everything would be rosy from that point on, but it impossible hours. I added a couple of new pieces of equipment to the control section. One was simply a huge memory bank. The other was a comparator circuit. A complicated one, but a comparator circuit nevertheless. Here I was working on instinct more than anything. I figured that if I interconnected these circuits in such a way that "I'll never forget the day I picked up an incoming order form from one of the western jobbers, and found that the keyboard was locked when I explanation. "The machine had realized that whenever one of those forms came in, I When Lexington beamed, Peter felt a surge of relief. Talking with this might mean the difference between getting the job or losing it. "Exactly!" whispered Lexington, in an almost conspiratorial tone. "I had altered the circuitry of the machine so that it tried to give me pleasure—because by doing so, its own pleasure circuit would be activated.

<question>:
How many people did Peter find out Lexington employed at the factory?

<options>:
A About 50, each with a robot assistant
B Only himself
C Three
D Himself and one engineer whom he was trying to replace

<answer>:

B