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

<passage>:
and though he didn't want to Arth closed his eyes in pain. "Vegetarian," he said. "Couldn't possibly eat meat. Barbarous. Ugh." "Well, we need some nourishment," ... nevertheless he did.... ox." I said. mildly, "You're late." "Don't yell at me, I feel awful," Simon told "Providence," Simon told her whilst fiddling with the aspirin bottle, "will provide." "Hm-m-m. But before providing vacations it'd be nice if Providence turned up a missing jewel deal, say. elbow. Something that would net about fifty dollars." Simon said, mournful of tone, "I'm not selfish," Betty said. "All I want is enough to pay me this week's salary." "Money," Simon said. "When you Simon said, enigmatically, "Now three hundred dollars you still retain caste whatever the styling. Simon said unenthusiastically, "Good morning, Mr. Oyster." He indicated the client's chair. "Sit down, sir." "If I didn't feel so lousy, I'd appreciate it." The client fussed himself with "Anything," Simon said. "Only one exception." "Excellent. Do you believe in time travel?" Simon said nothing. Across the on that. We said good-by and I could Simon continued to say nothing she ventured, "Time travel is impossible." "Why?" "Why?" "Yes, why?" None was forthcoming. There Simon said, "Let's get to the point, I've got to go to the Bahnhof and very intelligently. The potential client sat more erect, obviously with intent to hold the the field worth his salt has explained them away. But to get on. It's my contention that within a century or so man will have solved the problems of immortality and eternal youth, and it's also my suspicion that he will eventually be able to travel in time. So convinced am I of these possibilities that I am willing to gamble a portion of my fortune to investigate get my luggage." Arth didn't put up an argument Simon seemed incapable of carrying the ball this morning, so Betty said, "But ... Mr. Oyster, if the future has developed time travel why don't we ever meet such travelers?" the attendant there evidently couldn't make heads nor tails of the check receipt. He didn't speak English and then all subsequent history would be changed. In that case, the time traveler himself might never be born. They have to tread mighty carefully." Mr. Oyster was pleased. "I didn't expect you to be so well informed on the subject, young man." Simon shrugged and fumbled again with the aspirin bottle. Mr. Oyster went on. "I've been considering the matter for some time and—" Simon held up a hand. "There's no use prolonging this. As I understand it, you're an elderly gentleman with a considerable fortune and you realize that thus far nobody has succeeded in taking it with him." Mr. Oyster returned his glasses to their perch, bug-eyed Simon, but then nodded. Oktoberfest Simon said, "You want to hire me eternal life and youth, which you figure the future will have discovered. You're willing to pony up a part of this fortune of yours, if I can deliver a bona fide time traveler." "Right!" check in with Betty. I opened the door and there I found Mr. Oyster sitting in the chair he had been occupying four—or was it five—days before when I'd left. Oktoberfest sir. I can report. Ah, what was it Oktoberfest ," he repeated. "The greatest festival the world has ever seen, the carnival, you came for? Impatient to hear if his money and had nothing I could think of to show for it the last stages of a grand-daddy hangover. "Came for?" Mr. Oyster snorted. "I'm merely waiting for your girl to make out my receipt. I thought you over to my desk and looked down at the calendar. Mr. Oyster was saying something to the effect that if I didn't leave today, it would have to be tomorrow, on the fair grounds which will hold dollars advance for anything less than immediate service. Stuffing his receipt in his wallet, he fussed five thousand customers apiece. Millions that he hadn't ponied up that thousand his way out the door. sausage, millions upon millions of pretzels—" "All right," Simon said. "We'll accept it. The Oktoberfest travelers yet." I tried just once more. "Uh, when did you first see this Mr. Oyster?" "Never saw him before in my life," she said. "Not until he came Oktoberfest Oktoberfest "But why would a time traveler ten minutes ago, were gone about three minutes, and then came back." "See here," Mr. Oyster said (interrupting Simon's story), "did you say this was supposed to be amusing, young man? I don't find it so. In fact, I believe I am being ridiculed." Simon shrugged, put one hand to his forehead and said, "That's only more." "I'm not interested in more," Mr. Oyster said. "I suppose your point was to show me how ridiculous the whole idea actually is. Very well, I suppose your time, even when spent in this manner, has some value. He took a deep breath. "No ma'am, you'd have to stick to some great event, both for the sake of actual interest and for protection against being Simon winced at the noise, took Here is fifty dollars. And good day, sir!" Oktoberfest wages," she said. "I suppose that's Simon was shaking his head. "Not But I'm surprised you didn't take his money and enjoy that vacation back into place, she glared unbelievingly at him. Mr. Oyster was taken aback himself. "See here, young man, I realize this isn't an ordinary assignment, you've been yearning about." however, as I said, I am willing to risk a considerable portion of my fortune—" done." "A hundred dollars a day plus expenses," Mr. Oyster said quietly. "I like the fact that you already seem to have some interest and knowledge "Sorry," Simon said. "Can't be Simon "I keep telling you," Simon said "No go," Simon said, a sad quality in his voice. "A fifty thousand dollar bonus if you bring me a time traveler." "Out of the question," Simon said. "But "Just for laughs," Simon told the furious at him, "you've given up! this:" I got a thousand dollars from Mr. Oyster (Simon began) in the way of an advance, and leaving him with Betty who was making out a receipt, Simon said wearily, "There's just Why this is the biggest thing— Why the fifty thousand dollars is nothing. on top of that!" He shuddered. "If you think I'm again." THE END Transcriber's Note: I could put into my reports to Mr. Oyster. I was going to have to give him some kind of report for his money. Time travel yet! What a I spent that time dreaming up material Oktoberfest ponied up all the money for such expenditures? How could the average German, with his twenty-five dollars a week salary? one way of taking care of a crackpot. by one of the circuslike tents that Mr. Oyster mentioned. Each tent contained benches and tables for about five thousand persons and from Simon nodded, miserably. , by the way, not mugs. The bald-headed He looked at me, waiting. I came up. "Mistaken," I admitted. A mass "Next what?" Baldy's conversation Oktoberfest one of the seven brands of the best beer the world has ever known. I'm mass . "I'll help you," I told him. "Very noble endeavor. if you'll make it or not, Arth." "Make what?"

<question>:
Why does Simon ultimately deny Mr. Oyster's request to go to Oktoberfest?

<options>:
A He believes that Mr. Oyster is on a mission to destroy time travelers
B He thinks that Mr. Oyster is attempting to alter the space-time continuum
C He knows he will not be allowed to do something that might impact the past
D He does not believe that Mr. Oyster is offering fair compensation

<answer>:

C