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

<passage>:
Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] I heard the voice as I opened my eyes. I was lying down, still not aware of where I was, waiting for the voice. "Your name is David Corbin. Do you understand?" I looked in the direction of the sound. Above my feet a bulkhead loomed. There were round dials set in a row above a speaker. Over the mesh-covered speaker, two knobs glowed red. I ran the words over in my sluggish mind, thinking about an answer. The muscles in my throat tightened up in reflex as I tried to bring some unity into the jumble of thoughts and ideas that kept forming. One word formed out of the rush of anxiety. "No." I shouted a protest against the strangeness of the room. I looked to "Your name is David Corbin. If you understand, press button A on your right." I stared at the speaker in the wall. The mesh-covered hole and the two twisted my head to look for the button. I pushed away from the close "If you understand, press button A on your right." I stared at my familiar hands. I rubbed them across my face, feeling the solidity of flesh and bone, afraid to think too hard about myself. "My name ... my name is...." "Your name is David Corbin." I stared at the speaker. How long did this go on? The name meant nothing to me, but I thought about it, watching the relentless lights that shone below the dials. I stood up slowly and looked at myself. I the voice repeated the message again I had to act. Walking was like treading water that couldn't be seen or felt. hand over hand, shooting down the corridor. I braced against forward motion and stopped against a door at the end. Behind me I could see the opened door I had left, and the thought of that questioning voice made couldn't read the maps that were fastened to a table, nor understand the function or design of the compact machinery. WHY, Why, Why? The thought kept pounding at me. I was afraid to touch Back in the room where I had awakened, I touched the panel with the glowing eyes. It had asked me if I understood. Now it must tell me why I didn't. It had to help me, that flat metallic voice that repeated the same words. It must tell me.... "Your name is David Corbin. If you understand, press button A on your I pressed the button by the cot. The red lights blinked out as I stood in patient attention, trying to outguess the voice. I recalled a phrase ... some words about precaution. Precaution against forgetting. "It is assumed the experiment is a success," the voice said. What experiment? Your maximum deviation from schedule cannot exceed two degrees. Adopt emergency procedures as you see fit. Good luck." The voice snapped off and I laughed hysterically. None of it had made sense, and I cursed whatever madness had put me here. "Tell me what to do," I shouted wildly. I hammered the hard metal until the pain in my hands made me stop. "I can't remember what to do." I held my bruised hands to my mouth, and I knew that was all the man was tall and raw boned, light of skin and hair, as dead as the others. A flat, illogical voice had instructed me to revive these men. I shivered in spite of the warmth of the room, studying the black box that squatted on a shelf by his head. My hand shook when I touched instructions without knowledge were useless to me. I stopped looking into the doors in the passageway and went back to the room with the they recording? What speeds and perhaps, what distance? It was useless to translate the markings. They stood for anything I might guess, and something kept pricking my mind, telling me I had no time to guess. I could stand it no longer. Searching the ship made me forget my fear. I hoped I would find some no point to start from, no premise to seek. I sensed the place to start from was back in the room. I searched it carefully. the base helplessly. If some sort of antidote was to be administered manually I was lost. I had no knowledge of what to inject or where to sent along to safeguard the others. Complete amnesia would have been terrible enough but this half knowledge, part awareness and association me. I went back to the cabin where the powerful man lay. I had to risk failure with one of them. I didn't want it to be the girl. I fought down the thought that he might be the key man, remembering the voice that had given the message. It was up to me, and soon. The metal in the box would have withstood a bullet. It couldn't be pried apart, and I the touch of a button and it went into operation. I stepped back as the name or anything about this ship." "What do you mean? What can't you remember?" he asked. He stood up slowly, edging around towards the door. I didn't want to fight him. I wanted him to understand. "Look, I'm in trouble. Nothing fits, except my name." "You don't know me?" He shook his head, watching me like I was a freak. "Let's check the rest right away." The second man, the dark haired one, opened his eyes and recognized us. He asked questions in rapid fire excitement. The third man, the tall Viking, was all right until he moved. The weightless sensation made him without results when we drifted out. I followed him to the girl's quarters. "What about her. Why is she here?" I asked my companion. "I don't know." Blue eyes stared at me in fear. Her voice was low. "Do you know my name?" The question frightened her. "Should I? I feel so strange. Give me a minute to think." I let her sit up slowly. "Do you know your name?" uncontrollably. "What's happened to me?" she asked. The dark haired man came into the room, silent and watchful. My companion motioned to him. "Get Carl and meet us in Control." He nodded and pushed away from us. The girl screamed and covered her face with her hands. I turned to the other man. "What's your name?" right if you don't lose your nerve." "What are we to do?" she asked. John answered for me. "First we've got to find out where we are. I know this ship but I can't fly it." "Can I?" I asked. crescendo of sound that hummed through the walls. I went into the control room and watched John at the panel. "I wish I knew what you were doing," I said savagely. "That had me wondering for a while. I don't know. Anyway how could you go about making her remember?" "Throw a crisis, some situation at her, I guess." He shrugged, letting his sure hands rest on the panel of dials. I headed back towards the lab. If I could help her I might help myself. I was past the rooms when the horn blasted through the corridor. I the control room. Deep in my mind I could see danger, and without questioning why I knew I had to be at Control when the sound knifed through the stillness. John was shouting as I thrust my way into the room. "Turn the ship. There's something dead ahead." My hands hit buttons, thumbed a switch and then a sudden force threw me seconds, feeding compensation into the gyros. Relief flooded through me like warm liquid. I hung on the intercom for support, drawing air into my heaving lungs. "What—made you—think of that," I asked weakly. "Shock treatment." "I must have acted on instinct." "It's been dead ahead for hours," he grunted. I leaned over and threw the intercom to open. "This is control. Listen ... everyone. I'm over it. Disregard the warning siren ... we were testing the ship." "John did it. He hit the alarm figuring I would react. Listen, Paul. Is I glanced at John. He rubbed his stomach. "Yes," I answered. "Bring it when you can. I've got to find out where we are."

<question>:
Why did David press the button?

<options>:
A He understood his name.
B The experiment was successful.
C He wanted to leave the spaceship.
D He wanted to get more information from the voice.

<answer>:

D