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

<passage>:
You will, you know, so why quibble about it? At least, you always Thanks. You think you're crazy, of course, but you'll find out you aren't. It's just that things are a bit confused. And don't look at the hard on the eyes, trying to follow where the vanes go. You'll get used to it, of course, but it will take about thirty years. I felt the same way when he—that is, of course, I or we—came back to tell me about it, thirty years ago. Here, have one of these. You'll get to like them in a couple more Right now, you're shocked. It's a real wrench when a man meets himself but he—I—told me what I was going to do, so I might as well do the same. I probably couldn't help telling you the same thing in the same words, even if I tried—and I don't intend to a few buttons on a dash. You'll be puzzling over what I'll tell you, and you'll be getting used to the idea that you are the man who makes atomic power practical. Jerome Boell, just a plain engineer, the man you'll want to go along. I'll be tired of talking by then, and in a hurry to get going. So I I did—and you will—you get further and further from an answer. Anyhow, you sit there, watching nothing all around you, and no time, gravity field built in, or maybe the time that makes your watch run is responsible for gravity. In spite of Einstein, you have always had the anyway?" I'd told you that, too, but you've forgotten. "As near as I can guess, it's about 2150. He told me, just as I'm telling you, that it's an interstellar civilization." "What about the time machine?" you ask. It's obviously a service elevator and we're in a dim corridor, with nobody around. I grab your hand and shake it. "You go that way. Don't worry about getting lost grab the motor, and get out. And good luck to you." You act as if you're dreaming, though you can't believe it's a dream. You nod at me and I move out into the main corridor. A second later, questions of a man, who points, and I turn and move off. You come out of the side corridor and go down a hall, away from the Why should they? You wouldn't care if you saw a man in a leopard-skin You get up your courage and go up to a boy selling something that might "Downayer rien turn lefa the sign. Stoo bloss," he tells you. Around you, you hear some pretty normal English, but there are others using stuff as garbled as his. The educated and uneducated? I don't know. You go right until you find a big sign built into the rubbery surface of the walk: Miuzi:m *v Syens . There's an arrow pointing and you turn lower than they used to, apparently. Twenty floors up seems about the hesitate for a moment, then. You're beginning to think the whole affair is complete nonsense, and you should get back to the time machine and in his suit and the friendly grin on his face, he looks like any other guard. What's more, he speaks pretty clearly. Everyone says things in a sort of drawl, with softer vowels and slurred consonants, but it's rather pleasant. "Thanks," you mutter, wondering what kind of civilization can produce guards as polite as that. "I—I'm told I should investigate your Oh—congratulations on your pronunciation. Sounds just like some of our oldest tapes." You get away from him, finally, after some polite thanks. The building "Souvenir," it announces in a well-modulated voice. "This is a typical in size. You can have it made into a ring on the third floor during morning hours for one-tenth credit. If you have more than one child, press the red button for the number of stones you desire." You put it in your pocket, gulping a little, and get back to the corridor. You turn left and go past a big room in which models of final form. You study it, but it mentions casually the inventor, without giving 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 "Nice," the guard says over your shoulder. "It finally wore out one of as the great inventor made it. And it still operates as well as ever. Like to have me tell you about it?" "Not particularly," you begin, and then realize bad manners might be conspicuous here. While you're searching for an answer, the guard pulls You work down the line. It'd be foolish to take the early model if you if you'd stop drinking so much of that scotch and staring at the time machine out there now, you'd hear what I'm saying and know what will lot of what I say from now on, and have to find out for yourself. But maybe some of it helps. I've tried to remember how much I remembered, after he told me, but I can't be sure. So I'll keep on talking. 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 seems clear. Then you hear his voice from the weapons room. You bend down and try to scurry past, but you know you're in full view. Nothing happens, though. a quick sigh of relief and start out onto the street. Then there's a yell behind you. You don't wait. You put one leg in front of the other and you begin racing down the walk, ducking past Something goes over your head and drops on the sidewalk just in front of your feet, with a sudden ringing sound. You don't wait to find out The cop nods. "Oh, that explains it. Fine, I won't have to give you an appearance schedule. But you should have come to me." He reaches out and taps a pedestrian lightly on the shoulder. "Sir, an emergency request. Would you help this gentleman?" The pedestrian grins, looks at his watch, and nods. "How far?" 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 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 at you both. before you. And he is. He stands just inside the door of the building as you reach it. The stranger lifts an eyebrow and goes off at once when you nod this building. Just let us know when you're finished with the model and we'll pick it up." You swallow several sets of tonsils you had removed years before, and take the bundle of papers he hands you out of the little case. He pumps you for some more information, which you give him at random. It seems to satisfy your amiable guard friend. He finally smiles in satisfaction and heads back to the museum. 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 beside it and you finally decide on that. Suddenly, there's a confused yell from the direction of the elevator nerves settle back to normal. You notice a third set of buttons, with some pencil marks over them—"Press these to return to yourself 30 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 kids from school are coming around to stare at the man who changed be anything but a democracy and a peaceful one—after some of the worst times in history for a few years. Your name eventually becomes as common as Ampere, or Faraday, or any other spelled without a capital

<question>:
What isn't something the guest expects the younger man to do?

<options>:
A steal something from a museum
B take credit for an invention from the future
C run the time machine
D listen to his directions very carefully

<answer>:

D