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

<passage>:
He furrowed his brow, bewildered now by her. "I mean," she explained, "maybe you should ask why people in the 20th Century did want to go to worlds men are not suited to inhabit." "But why ?" Despite his sudden irrational anger toward her, Maitland tried to stick to logic. "Living space, for one thing. The only permanent solution to the population problem...." "Birth control," Maitland scoffed. "How do you make it work—secret Something moved in the darkness on the other side of the room. Maitland "No. Education. Each of us has the right to two children, and we cherish that right so much that we make every effort to see that those two are the best children we could possibly produce...." She broke off, looking a little self-conscious. "You understand, what I have been saying applies to most stopped. She shrugged her shapely shoulders. "Go into the past—yes! But go out there? I still cannot see why." "Has the spirit of adventure the heavily guarded confines of the Reservation, yet someone had done it. How? the door slid aside and disappeared. Maitland glanced in at Maitland stared at her, his face blank. His mind had just manufactured a discouraging analogy. His present position was like that of an earnest 12th Century crusader, deposited by some freak of nature into in vain that the atomic bomb offered a means of finally destroying the infidel.... Maitland looked up at the girl, who was regarding him silently with aware that he was hungry. Where the devil could this place be? And—muscles tightened about his empty stomach—what was in store for him here? He stood trembling, acutely conscious that he was afraid and helpless, to protest, but Swarts went on, "However, you're free to do all the guessing you want." Still there was no suggestion of a smile. leave it except when accompanied by myself. You will not be harmed in any way, provided you cooperate. And you can forget the silly idea that "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 against your will, if I must. I would prefer not to. Please don't make me." "What's the idea?" Maitland asked. "What is all this?" Maitland stood there for a moment, deliberately relaxing his tensed muscles. "Make me." Maitland shook his head stubbornly. how would you like to go to the Moon ?" Something eager leaped in Maitland's breast at the abrupt question, and why ." In the evening a girl brought Maitland his meal. As the door slid aside, he automatically stood up, and they stared at each other for several seconds. most likely, they were what they purported to be. Only one question of importance remained: challenging spaceways between the solar worlds. "I'm adaptable," he told himself gleefully. "I can learn fast. There'll be a job for me out there...." If— wouldn't talk, he would have to find a way of forcing the issue. The fellow had said that he didn't need cooperation to get his results, but— that she had discarded the white cloak. As he swung his legs to the floor, she started toward the door, carrying the tray with the dirty dishes from yesterday. He stopped her with the word, "Miss!" Startlingly, she laughed, a mellow peal of mirth that had nothing forced about it. She turned toward the door again and said over her shoulder, "You will have to ask Swarts about that. I cannot tell you." "Wait! You mean you don't know?" She shook her head. "I cannot tell you." "All right we'll let it go at that." "What year is this?" stated. "No, I don't. Not since yesterday." "What year is this?" Maitland asked in a conversational tone. countermove? He closed his eyes, but shortly the muscles around them declared excruciatingly that they couldn't keep that up. Now he was looking at a girl. She.... Maitland gritted his teeth and fought to use his brain then he had it. after school. He remembered a talk he had heard by a politician who had all the intelligent social responsibility of a rogue gorilla, but no more. He brooded over the damnable stupidity and short-sightedness of Swarts in standing by his silly rules and not telling him about this new world. "What year is this?" he asked. to his eyes again, and this time the engineer did not resist. That evening, he could hardly wait for her to come. Too excited to sit and watch the sunset, he paced interminably about the room, sometimes whistling nervously, snapping his fingers, sitting down and jittering want, even from Swarts, and I have not been able to get even a little of what I want from him. I want to travel in time, go back to your 20th Century. And I wanted to talk with you, and he would not let me." She laughed again, hands on her rounded hips. "I have never seen him so Maitland urged her into the chair and sat down on the edge of the bed. Eagerly he asked, "Why the devil do you want to go to the 20th Century? lot better." She shrugged. "Swarts says that I want to go back to the Dark Age of Technology because I have not adapted well to modern culture. Myself, I think I have just a romantic nature. Far times and places look more exciting...." "How do you mean—" Maitland wrinkled his brow—"adapt to modern altogether like the Norwegians of my time." His fear that she would be offended proved to be completely unjustified. She merely laughed and said, "There has been much Maitland wrinkled his brow. "Afrikander?" they had developed technology while the rest of the world lost it. They had a tradition of white supremacy, and in addition they were terrified of being encircled." She sighed. "They ruled the next world empire and it was founded on the slaughter of one and a half billion human beings. raising food or manufacturing things. It could never have been done, either, before the population was—reduced to three hundred million." She shook her head. "There are no more Afrikanders." "Rebellion?" "No. Intermarriage. Racial blending. There was a psychology of guilt race now. No more masters or slaves." They were both silent for a moment, and then she sighed. "Let us not talk about them any more." She shook her head, bewildered. "I always thought that would be a tough problem to crack," he agreed. After several seconds, Maitland swallowed. Something seemed to be the He was gripping the edge of the bed now, glaring at her. "A civilization that could discover time travel and build robot factories wouldn't find it hard to send a ship to Mars!" . Why, no, I don't suppose it would be hard. But why would anyone want to do a thing like that?" arms as if to shield her face if he should hit her. "Let's get this perfectly clear," he said, more harshly than he realized. "So far as 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 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 do it." Her pitying eyes were on his face. He hitched himself around so that he was facing her. "I've got to understand. I've got to know why . What happened? Why don't men want the planets any more?" "Honestly," she said, "I did not know they ever had." She hesitated. "Maybe you are asking the wrong question."

<question>:
Why could Ingrid not tell Maitland what year it was?

<options>:
A She was not allowed to
B She didn't know
C She didn't speak fluent English
D She was unwilling to

<answer>:

A