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

<passage>:
The Callisto-bound a cook. What it got was a piping-voiced We picked up our new cook on Phobos. Not Phoebus or Phoebe were just one blast of a jet-tube out of Sand City spaceport. But since we were rocketing under sealed orders, we couldn't turn back. So we laid the Leo "Mister Dugan," he said, "go out and find us a cook!" nobody-knew-where. And, of course, cooks are dime-a-dozen when you I tried the restaurants and the employment agencies, but it was no can't seem to find a cook on the whole darned satellite." we've got to have a cook, Dugan! We can't go on without one!" might be able to boil a few pies, or scramble us a steak or something, Skipper." "Thanks, Dugan, but that won't do. On this trip the men must be fed regularly and well. Makeshift meals are O.Q. on an ordinary run, but when you're running the blockade—" orders?" can't expect to win through the enemy cordon unless our men are in top find a cook, or—" "The search," interrupted an oddly high-pitched, but not unpleasant voice, "is over. Where's the galley?" "Well," he repeated impatiently, "where is it?" here to be your new cook." "you don't look like much of a cook to . Do I get the job, or don't I?" hastily. I said, "Excuse me, sir, shall I handle this?" Then, because fellow, "are a cook?" I said quickly, "If you don't mind, sir, this is no time to worry over can cook—" you're right, Dugan. All right, Slops, you're hired. The galley's on the second level, port side. Mess in three quarters of an hour. Get going! Dugan, call McMurtrie and tell him we lift gravs immediately— Slops! What are you doing at that table?" For the little fellow had sidled across the control-room and now, eyes "None of your business!" bellowed O'Hara in tones of thunderous outrage. "Get below instantly, or by the lavendar lakes of Luna I'll—" through the Meteor Bog, using it as a cover." " Mr. Dugan! "Take this—this culinary tactician out of my sight before I forget I'm come down to the galley for it!" A hurt look crept into the youngster's eyes. Slowly he turned and followed me from the turret, down the ramp, and into the pan-lined cubicle which was his proper headquarters. When I was turning to leave by you take care of the cooking and let the rest of us worry about the spacemen. From oil-soaked old Jock McMurtrie, the Chief Engineer, all the way down the line to Willy, our cabin-boy, the had the skipper finished talking than the audio hummed and a cheerful call rose from the galley: "Soup's on! Come and get it!" had not exaggerated when he called himself one of the best cooks in space. That meal, children, was a meal! When it comes to victuals He rang the bell that summoned Slops from the galley, and the little everything O.Q. in the galley?" from one foot to another. "Oh, thank you, sir! Thank you very much. Yes, the galley was in fine order. That is—" He hesitated—"there is one little thing, sir." "So? Well, speak up, son, what is it? I'll get it fixed for you right tip-top chef, what?" "No trouble at all. Just say the word." "Well, sir," confessed Slops reluctantly, "I need an incinerator in the galley. The garbage-disposal system in there now is old-fashioned, inconvenient and unsanitary. You see, I have to carry the waste down two levels to the rocket-chamber in order to expel it." The skipper's brow creased. "I'm sorry, Slops," he said, "but I don't see how we can do anything about that. Not just now, at any rate. That job requires equipment we don't have aboard. After this jump is over I'll see what I can do." If that could be installed by the galley vent, I could use it as an incinerator." I have no incinerator—" up the old Nolan in the galley for incineration purposes. Did you say "Yes, Captain, all the fixings. I'll start cooking the meal as soon as the new incinerator is installed." thorough cleaning. The way he was oiling and scrubbing at that antique by accident, into the men's shower room and met up with a brawny young prospector—" "Plenty of time, Slops. Wait till you hear this old maid got flustered and said, 'Oh, I'm sorry! I must be in the wrong "If you don't mind, Mr. Dugan," interrupted the cook loudly, "I'm answered, 'That's O.Q. by me, sister. I won't—'" out of Mars. As any schoolchild knows, it's a full hundred million from the desert planet to the asteroid belt. In those days, there was no such device as a Velocity-Intensifier unit, and the along at a mere 400,000 m.p.h. Which meant it would take us at least ten days, perhaps more, to reach that disputed region of space around too. Come on, Joe, let's get out of here before we give Slops bad dreams and goose-flesh!" ballast-bins to bunk-rooms. He quizzed the Chief about engine-room over again. usually are. But I'm in command of the along like a good lad and bring me some more of this salad." that morning well, because I was in the mess-hall having breakfast with "Eh?" The chef looked startled. "Beg pardon, sir?" There's a double watch on duty, and men at every gun. If we do meet up the Belt, Captain." that instead of just yipping and yapping He was out of his seat, bustling to the audio, buzzing Lieutenant Wainwright on the bridge. "Johnny—that you? Listen, change traj quick! Set a new course through the Belt by way of Iris and the Bog, and hurry up, because—" What reason he planned to give I do not know, for he never finished on a freshly-waxed floor. The motion needed no explanation it was unmistakeable to any spacer who has ever hopped the blue. Our ship had their duties and how to perform them. An instant after the hastily converted into an all-way, inter-ship communicating unit, came a jumble of voices. A call for Captain O'Hara to "Come to the bridge, groooom! from the fore-gunnery port as a crew went into action ... a answering. What do you want?" You are surrounded by six armed craft, and your vessel is locked in our tensiles. Any further effort to make combat will bring about your immediate destruction!" From the bridge, topside, snarled Johnny Wainwright, "The hell with 'em, Skipper! Let's fight it out!" And elsewhere on the It was then that Andy Laney, who had lingered in the galley doorway to fulfil, an important one. Corpses can't run errands." "And the ?" command." "That's what I thought. But they mustn't be allowed to do that. We're greet it. Our secret would be discovered, Callisto occupied by the I think he would have turned, then, and given orders to continue the fight even though it meant suicide for all of us. But it was too late. Already our lock had opened to the attackers down the metal ramp we now heard the crisp cadence of invading footsteps. The door swung open, and the Alliance commandant stood smiling triumphantly before us.

<question>:
How do they get from the kitchen to the control room?

<options>:
A Go down a ramp
B Go down 2 levels
C Go up 2 levels
D Go up a ramp

<answer>:

D