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

<passage>:
Unfortunately , there was only one thing he could bring back from the wonderful future ... and though he didn't want to ... nevertheless he did.... her. He sat down at his desk, passed his tongue over his teeth in distaste, groaned, fumbled in a drawer for the aspirin bottle. He looked over at Betty and said, almost as though reciting, "What I rolled in. When it rolled out again, I found myself closing one eye the to use for money?" "Providence," Simon told her whilst fiddling with the aspirin bottle, "will provide." "Hm-m-m. But before providing Simon said, mournful of tone, "Money," Simon said. "When you Simon said, enigmatically, "Now Simon said unenthusiastically, Phased all the way down." "You haven't got a handful of aspirin, have you?" I asked him. "Just a minute," Arth said, staggering in the phone book says you'll investigate erect and heading for what "All right," I told him plaintively. "I'm clean. I won't mess up the place. All I've got is a hangover, not lice." Arth was gone. He came back in two or three minutes, box of pills in hand. "Here, take one of these." I took the pill, followed it with a glass of water. And went out like a light. Simon continued to say nothing she ventured, "Time travel is impossible." for one thing, paradox. Suppose you had a time machine and traveled back a hundred years or so and killed your own great-grandfather. Then how Simon said, "Let's get to the point, what you wanted to see me about." "I want to hire you to hunt me up some time travelers," the old boy said. Betty was too far in now to maintain her proper role of silent secretary. "Time travelers," she said, not very intelligently. The potential client sat more erect, with their king-size mugs and drank each other's health. My head was killing me. "This is and then remembered. "I've "Then you'll realize that there are a dozen explanations of the paradoxes of time travel. Every writer in the field worth his salt has explained got to get my bag. Oh, my head. Where did we spend last night?" them away. But to get on. It's my 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 travelers." Simon seemed incapable of carrying the ball this morning, so Betty said, "But ... Mr. Oyster, if the future has developed time travel why fact that they'd somehow managed Simon put in a word. "The usual explanation, Betty, is that they can't afford to allow the space-time continuum to lose my bag didn't help. I worked time traveler returned to a period of twenty-five years ago and shot Hitler, then all subsequent history would be changed. In that case, the time traveler himself might never be born. They have to tread mighty carefully." track to be altered. If, say, a especially accompanied by a 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 Simon held up a hand. "There's a gallon or more of Marzenbräu. I decided the hell with it. I took should drink realize that thus far nobody has succeeded in taking it with him." don't we ever meet such travelers?" their perch, bug-eyed Simon, but then a cab to the airport, presented my return Simon said, "You want to hire me to find a time traveler and in some manner or other—any manner will do—exhort from him the secret of head shrinker preparatory to being You're willing to pony up a part of this fortune of yours, if I can deliver a bona fide time traveler." "Right!" on that project for at least a couple If I'd only been able to get a room I "But where are you going to find would have stayed, I told myself. to wear off—a little—I was almost he had been occupying four—or was it five—days before when I'd left. I'd lost track of the time. Betty and Simon waited. pathetic remains of the thousand. you came for? Impatient to hear if such a bang-up time they've been holding it every year since. The of ice cream in my stomach. I walked over to my desk and looked down at the calendar. Mr. Oyster was saying something it would have to be tomorrow, that he hadn't ponied up that thousand dollars advance for anything less than immediate service. Stuffing his receipt in his wallet, he fussed his way out the door. to the effect that if I didn't leave today, blockbusting hangover. in." She added, irrelevantly, "Time travelers yet." "Well," the old boy pursued, into I tried just once more. "Uh, when Oktoberfest . For one thing, a time traveler wouldn't be conspicuous. At a festival like this ordinary in any of a dozen other ways, wouldn't be noticed. You could be a four-armed space traveler from Mars, and you still wouldn't be conspicuous in my pocket for my wallet, counted the contents and winced at the . People would figure they had D.T.'s." "But why would a time traveler sent off to a pressure cooker, I fished at the want to go to a—" Betty began. "Why not! What better opportunity Simon's story), "did you how long ago did I go out that door—on the way to the airport?" "You've been acting sick all morning. Simon shrugged, put one hand to as he left. Simon winced at the noise, took the aspirin bottle from its drawer, took two, washed them down with water from the desk carafe. Simon was shaking his head. "Not one way of taking care of a crackpot. take his money and enjoy that vacation you've been yearning about." "I did," Simon groaned. "Three times." But I'm surprised you didn't Simon nodded, miserably. Simon "Sorry," Simon said. "Can't be done." "A hundred dollars a day plus expenses," time traveler, there might have been—" "I keep telling you," Simon said dollars bonus. If that story was times. There were hundreds of them. Probably thousands." He took a deep breath. "Listen, we're just going to have to forget about it. They're not going to stand for the space-time in his voice. "A fifty thousand dollar bonus if you bring me a time traveler." "Out of the question," Simon said. you—all over again. They just can't allow anything to come back from the future and change the "Just for laughs," Simon told the continuum track being altered. If The future! Just think!" Simon said wearily, "There's just one thing you can bring back with you from the future, a hangover compounded of a gallon or so of Marzenbräu. What's more you can pile Oyster (Simon began) in the way I hustled back to the apartment and packed a bag. Hell, I'd wanted a vacation anyway, this was a natural. On hangover on the three I'm already nursing, all at once, you can think again." I spent the time planning the fun I was going to have. It takes roughly seven and a half Mr. Oyster. I was going to have to give him some kind of report for his money. Time travel yet! What a laugh! Between Shannon and Munich a A desperate waitress bearing six mugs of beer in each hand scurried past. They call them masses masses over "Why?" true, you should have gone back "Why?" from his pocket and a pencil, noted down the word and returned the things. bitterly, "I went back there three Name is Simon." "I'm still fresh—comparatively. I'll navigate you around. There are seven beer tents. How many have you to her for refills.

<question>:
Why does Simon look for a bottle of aspirin in the beginning of the story?

<options>:
A He has a migraine
B He is concerned someone has tampered with it
C He has a hangover
D He keeps time traveling pills inside

<answer>:

C