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

<passage>:
Maitland felt his face become hot. "Men can go anywhere, if they want There was a thump. Maitland stirred, came half awake, and opened his Despite his sudden irrational anger toward her, Maitland tried to stick 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. What had he heard? He had a definite impression that the sound had come from within the room. It had sounded like someone stumbling into a Something moved in the darkness on the other side of the room. Maitland Shock contracted Maitland's diaphragm and spread through his body. he remembered what had happened during Where was he? Who had brought him here? For what purpose? He thought he knew the answer to the last of those questions. As "Because this is the Age of Man the door slid aside and disappeared. Maitland glanced in at Maitland stared at her, his face blank. His mind had just manufactured Striding across the room, he lunged forward to peer out and violently Maitland looked up at the girl, who was regarding him silently with hadn't heard of. Security sometimes had disadvantages. He looked out at the peaceful vista of river and prairie. The character of the sunlight seemed to indicate that it was afternoon. He became aware that he was hungry. Where the devil could this place be? And—muscles tightened about his Maitland speculated on the possibility that this might be Sweden of year was customary. However, that prairie certainly didn't look Scandinavian.... As they came closer, he saw that both of them had dark uniform suntans About half an hour later, the door he couldn't open slid aside into the sandals, stood across the threshold looking in at him. Maitland stood were the forehead, which was quite broad, and the calm, clear eyes. The dark hair, white at the temples, was combed back, still damp from This man was intelligent, Maitland decided, and extremely sure of otherwise unidentifiable. Possibly German. Maitland opened his mouth we want your childish secrets about rocket motors." Maitland's heart "Are you crazy?" Maitland asked quietly. "Do you realize that at this "What's the idea?" Maitland asked. "What is all this?" 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 So—Maitland thought—Swarts could record changes in his skin "You seem to know everything about me," Maitland said defiantly, Something eager leaped in Maitland's breast at the abrupt question, and didn't I? Maitland, I brought you here because you're a man who wants to go to the Moon. I'm interested in finding out why ." expectancy. Maitland sighed and said, "Hello," then glanced down 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 contrary. Maitland frowned. This place certainly didn't have the foreign intelligence officers. It might be better to tackle the first question first. He looked at the Sun, a red spheroid already half below the horizon, and tried to think of a region that had this kind of terrain. That prairie out there was unique. Almost anywhere in the world, land like that would be cultivated, not allowed to go to grass. 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. After a while the western sky became a screen of clear luminous blue, a backdrop for a pure white brilliant star. As always at that sight, Maitland felt his worry drain away, leaving an almost mystical sense of peace and an undefinable longing. Venus, the most beautiful of the planets. Maitland kept track of them all in their majestic paths through the constellations, but Venus was his favorite. Time and time again he had watched its steady climb higher and higher in the western sky, its transient rule there as evening star, its progression toward the horizon, and loved it equally in its alter ego of morning star. Venus Something icy settled on the back of his neck, ran down his spine, and clenched, forgetting to breathe. Last night Venus hadn't been there. Venus was a morning star just now.... Just now! 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 Those questions were irrelevant now. And now he could accept the He grimaced in the darkness, an involuntary muscular expression of beside the Martian canals and pierced the shining cloud mantle of Venus—somewhere, perhaps, men who had visited the distant luring stars could reach the stars! And he "I'm adaptable," he told himself gleefully. "I can learn fast. There'll After a while Maitland smiled to himself and went back to bed. He woke in the morning with someone gently shaking his shoulder. He Swarts came half an hour later, and Maitland began his planned "What year is this?" Swarts' steely eyes locked with his. "You know what the date is," he stated. know this isn't 1950. It's probably not even the 20th Century. Venus was a morning star before you brought me here. Now it's an evening star." "Never mind that. Come." Wordlessly, Maitland climbed to his feet, preceded Swarts to the "What year is this?" Maitland asked in a conversational tone. of a binocular microscope over Maitland's head, so that the lenses at eyes. He attached tiny clamps to Maitland's eyelashes. He inserted button earphones into Maitland's ears— With a deliberate effort, Maitland unclenched his fists and tried to Maitland gritted his teeth and fought to use his brain Within a minute, he was in an ungovernable rage. His muscles tightened There was blood hammering in Maitland's temples. His face felt hot and eyes and Swarts was standing over him, white-lipped. Maitland swore at "What year is this?" he asked. Maitland's smile became a grin. 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 He forgot about it and went on whistling. He was picturing himself aboard a ship dropping in toward Mars, making planetfall at Syrtis Major he was seeing visions of Venus and the awesome beauty of Saturn. In his mind, he circled the Moon, and viewed the Earth as a huge bright globe against the constellations.... Finally the door slid aside and she appeared, carrying the usual tray of food. She smiled at him, making dimples in her golden skin and His fear that she would be offended proved to be completely Maitland wrinkled his brow. "Afrikander?" have been awe, or even hatred he could not tell. "The Pan-Orientals eventually conquered all the world, except for North America—the last remnant of the American World Empire—and southern Africa. The it was founded on the slaughter of one and a half billion human beings. That went into the history books as the War of Annihilation." "I always thought that would be a tough problem to crack," he agreed. "But tell me about what men are doing in the Solar System. How is life After several seconds, Maitland swallowed. Something seemed to be the

<question>:
What made Maitland realize he was in the future?

<options>:
A A planet
B The terrain
C The people
D The sun

<answer>:

A