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

<passage>:
goals of today were as incomprehensible as the ancient quest for the Holy Grail! There was a thump. Maitland stirred, came half awake, and opened his eyes. The room was dark except where a broad shaft of moonlight from the open window fell on the foot of his bed. Outside, the residential section of the Reservation slept silently under the pale illumination of the full Moon. He guessed sleepily that it was about three o'clock. Despite his sudden irrational anger toward her, Maitland tried to stick started to sit up and it was as though a thousand volts had shorted his brain.... This time, he awoke more normally. He opened his eyes, looked through the window at a section of azure sky, listened to the singing of birds somewhere outside. A beautiful day. In the middle of the process of stretching his rested muscles, arms extended back, legs tensed, he froze, looking up—for the first time really seeing the ceiling. He turned his head, then rolled off the bed, wide awake. This wasn't his room! beneath its leafy roof of huge ancient trees. Shock contracted Maitland's diaphragm and spread through his body. His breathing quickened. Now he remembered what had happened during the night, the sound in the darkness, the dimly seen figure, and then—what? Blackout.... of arrested motion. Even after allowances were made for the outlandish design, something about the room still was not right. His eyes returned to the doors, and he moved over to study the nearer pressed it the door slid aside and disappeared. Maitland glanced in at There was no button beside this one, nor any other visible means of causing it to open. Baffled, he turned again and looked at the large open window—and realized what it was that had made the room seem so queer. aware that he was hungry. Where the devil could this place be? And—muscles tightened about his He stood trembling, acutely conscious that he was afraid and helpless, until a flicker of motion at the bottom of the hill near the river drew his attention. Pressing his nose against the window, he strained his for years with weights. They vanished below his field of view, presumably into the building. He sat down on the edge of the cot and glared helplessly at the floor. About half an hour later, the door he couldn't open slid aside into the wall. The man Maitland had seen outside, now clad in gray trunks and center of the room. "Lie down," Swarts said. When Maitland hesitated, Swarts added, "Understand one thing—the more you cooperate, the easier things will be for you. If necessary, I will use coercion. I can get all my results give you. That is as much as you need to know. Now lie down." Maitland stood there for a moment, deliberately relaxing his tensed Maitland shook his head stubbornly. He moved so fast that Maitland couldn't block the blow. It was to the solar plexus, just hard enough to double him up, fighting for breath. He felt an arm under his back, another behind his knees. Then he was on the cot. When he was able to breathe again, there were straps across his chest, hips, knees, ankles, and arms, and Swarts was tightening a clamp that held his head immovable. Presently, a number of tiny electrodes were adhering to his temples and self-consciously at his wrinkled green pajamas. She smiled, put the tray of food on the table, and swept out, her cloak billowing behind her. Maitland remained standing, staring at the closed Later, when he had finished the steak and corn on the cob and shredded carrots, and a feeling of warm well-being was diffusing from his stomach to his extremities, he sat down on the bed to watch the sunset and to think. There were three questions for which he required answers before he This might be somewhere in Africa.... He shook his head, puzzled. The Sun disappeared and its blood-hued glow began to fade from the sky. Maitland sat there, trying to get hold of the problem from an angle where it wouldn't just slip away. was an old friend. An old friend.... Something icy settled on the back of his neck, ran down his spine, and diffused into his body. He stared at the planet unbelievingly, fists clenched, forgetting to breathe. He realized the truth in that moment. Later, when that jewel of a planet had set and the stars were out, he lay on the bed, still warm with excitement and relief. He didn't have to worry any more about military secrets, or who Swarts was. Those questions were irrelevant now. And now he could accept the Only one question of importance remained: What year was this? He grimaced in the darkness, an involuntary muscular expression of jubilation and excitement. The future If— Suddenly sobered, he rolled over and put his feet on the floor, sat in the darkness thinking. Tomorrow. Tomorrow he would have to find a fellow had said that he didn't need cooperation to get his results, but— After a while Maitland smiled to himself and went back to bed. He woke in the morning with someone gently shaking his shoulder. He rolled over and looked up at the girl who had brought him his meal the "Yes," hesitantly. She lingered too long on the hiss of the last consonant. It was a calculation which required great concentration and frequent tracing back of steps. After several minutes, he noticed that Swarts had stopped calling words. He opened his eyes to find the other man the ends of the tubes were about half an inch from the engineer's eyes. He attached tiny clamps to Maitland's eyelashes. "These will keep you from holding your eyes shut," he said. "You can blink, but the springs are too strong for you to hold your eyelids down against the tension." He inserted button earphones into Maitland's ears— And then the show began. He was looking at a door in a partly darkened room, and there were There was a terrible blast of sound and the flash of smokeless powder—then blackness. With a deliberate effort, Maitland unclenched his fists and tried to slow his breathing. Some kind of emotional reaction test—what was the countermove? He closed his eyes, but shortly the muscles around them declared excruciatingly that they couldn't keep that up. Maitland gritted his teeth and fought to use his brain then he had it. new world. Within a minute, he was in an ungovernable rage. His muscles tightened against the restraining straps. He panted, sweat came out on his There was blood hammering in Maitland's temples. His face felt hot and swollen and he writhed against the restraint of the straps. The scene disappeared, the lenses of the projector retreated from his eyes and Swarts was standing over him, white-lipped. Maitland swore at him for a few seconds, then relaxed and smiled weakly. His head was starting to ache from the effort of blinking. "What year is this?" he asked. and watch the sunset, he paced interminably about the room, sometimes whistling nervously, snapping his fingers, sitting down and jittering one leg. After a while he noticed that he was whistling the same theme over and over: a minute's thought identified it as that exuberant Symphony. He forgot about it and went on whistling. He was picturing himself that right?" She nodded apprehensively. "I have never heard of it being done." He sank down on the bed and put his face in his hands. After a while he looked up and said bitterly, "You're looking at a man who would give would when I knew I was in your time. And now I know I never will." The cot creaked beside him and he felt a soft arm about his shoulders and fingers delicately stroking his brow. Presently he opened his eyes and looked at her. "I just don't understand," he said. "It seemed obvious to me that whenever men were able to reach the planets, they'd

<question>:
How did Maitland beat the second test on the second day?

<options>:
A He refused to be strapped down
B He did math in his head
C He thought about opposite kinds of images
D He closed his eyes

<answer>:

C