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

<passage>:
what happened to me atomic power practical. Jerome Boell, just a plain engineer, the man who put atomic power in every home. You won't exactly believe it, but you'll want to go along. I'll be tired of talking by then, and in a hurry to get going. So I traveling along it, you'd need a fifth. Don't ask me. I didn't invent the machine and I don't understand it." "But...." crazy. You'll see later why I couldn't have invented the machine. Of course, there may have been a start for all this once. There may have been a time when you did invent the machine—the atomic motor first, then the time-machine. And when you closed the loop by going back and saving yourself the trouble, it got all tangled up. I figured out once this century, as near as I can remember it, and I should be able to pass fairly well. I've had all my fortune—the one you make on that atomic generator—invested in such a way I can get it on using some identification I've got with me, so I'll do all right. I know they still use some kind of money, you'll see evidence of that. And it's a anyway?" I'd told you that, too, but you've forgotten. "As near as I can guess, and there is an elevator waiting, fortunately with the door open. "What about the time machine?" you ask. "Since nobody ever stole it, it's safe." We get in the elevator, and I say "first" to it. It gives out a go home. But then a guard comes to the gate. Except for the short legs "Thanks," you mutter, wondering what kind of civilization can produce guards as polite as that. "I—I'm told I should investigate your display of atomic generators." He beams at that. "Of course." The gate is swung to behind you, but obviously he isn't locking it. In fact, there doesn't seem to be a lock. "Must be a new part. You go down that corridor, up one flight them to check his latest theory of how they work. Too bad he could not explain the principle, either. Someone will, some day, though. Lord, the genius of that twentieth century inventor! It's quite a his name. Either they don't know it, or they take it for granted that everyone does, which seems more probable. They call attention to the fact that they have the original model of the first atomic generator built, complete with design drawings, original manuscript on operation, They state that it has all major refinements, operating on any fuel, producing electricity at any desired voltage up to five million, any chosen cyclic rate from direct current to one thousand megacycles, and any amperage up to one thousand, its maximum power output being fifty kilowatts, limited by the current-carrying capacity of the outputs. They also mention that the operating principle is still being each side. "Nice," the guard says over your shoulder. "It finally wore out one of it, either. You work down the line. It'd be foolish to take the early model if you can get one with built-in magnetic current terminals—Ehrenhaft or some other principle?—and nuclear binding-force energy terminals. But they're all held down by the same whatchamaycallem effect. moves. There's a little sign under it, indicating you shouldn't touch it, since the gravostatic plate is being renewed. Well, you won't be able to change the time cycle by doing anything I probably can't help it, anyhow. Pre-set, you might say. Well, you stagger down the corridor, looking out for the guard, but all dart past. The street is pretty clear now and you jolt along, with your arms seeming to come out of the sockets, and that atomic generator getting heavier at every step. Out of nowhere, something in a blue uniform about six feet tall and You did notice the name of the building from which you came and you mutter it. The stranger nods again, reaches out and picks up the other side of the generator, blowing a little whistle the cop hands him. Pedestrians begin to move aside, and you and the stranger jog down the street at a trot, with a nice clear path, while the cop stands beaming dissimilar in other ways. He snaps it open and you get set to duck. "You forgot the prints, monograph, and patent applications," he says. "They go with the generator—we don't like to have them separated. A good thing I knew the production office of 'Atoms and Axioms' was in this building. Just let us know when you're finished with the model and to satisfy your amiable guard friend. He finally smiles in satisfaction and heads back to the museum. You still don't believe it, but you pick up the atomic generator and the information sheets, and you head down toward the service elevator. There is no button on it. In fact, there's no door there. in the direction of the time machine, bumping against boxes, staggering here and there, and trying to find the right place by sheer feel. Then a shred of dim light appears it's the weak light in the time machine. You've located it. You put the atomic generator in the luggage space, throw the papers down beside it, and climb into the cockpit, sweating and mumbling. You reach forward toward the green button and hesitate. There's a red one beside it and you finally decide on that. Suddenly, there's a confused yell from the direction of the elevator it. Your finger touches the red button. You'll never know what the shouting was about—whether they finally doped out the fact that they'd been robbed, or whether they were trying to help you. You don't care which it is. The field springs up around you and the next button you touch—the one on the board that hasn't because there is only one of you this time. Instead, everything flashes off and you're sitting in the machine in your own back yard. You'll figure out the cycle in more details later. You get into the machine in front of your house, go to the future in the sub-basement, land in your back yard, and then hop back thirty years to pick up yourself, landing in front of your house. Just that. But right then, you don't care. You jump out and start pulling out that atomic generator and taking it inside. It isn't hard to disassemble, but you don't learn a thing just some But when you put it together again, about an hour later, you notice something. Everything in it is brand-new and there's one set of copper wires missing! It won't work. You put some #12 house wire in, exactly like the set on the other side, drop in some iron filings, and try it again. And with the controls set at 120 volts, 60 cycles and 15 amperes, you get just that. You don't need the power company any more. And you feel a little happier when you realize that the luggage space wasn't insulated from time effects by a field, so the motor has moved backward in time, somehow, and is back to its original youth—minus the replaced wires the guard mentioned—which probably wore out because of the makeshift job you've just done. But you begin getting more of a jolt when you find that the papers are all in your own writing, that your name is down as the inventor, and that the date of the patent application is 1951. It will begin to soak in, then. You pick up an atomic generator in the future and bring it back to the past—your present—so that it can be put in the museum with you as the inventor so you can steal it to be yourself.... Who invented what? And who built which? Before long, your riches from the generator are piling in. Little kids from school are coming around to stare at the man who changed history and made atomic power so common that no nation could hope to came looking for you and shouting, before the time machine left. Let's go.

<question>:
Why did Jerome not stop when he was being shouted at when leaving the futuristic civilization?

<options>:
A He was unsure what they wanted and didn't want to wait and find out.
B He knew they had caught on to his actions.
C He was fearing being held there for theft.
D He knew they were going to switch the generator with another

<answer>:

A