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

<passage>:
[Transcriber's Note: This etext was produced from Orbit volume 1 number destroyed them, one way or another, cleverly or ruthlessly as circumstances demanded. Time, too, could be destroyed. Or enslaved. feel that sureness of power in her grasp—the certain knowledge that she, first of all people, would turn Time on itself and destroy it. She would be youthful again. She would thread through the ages to come, like time—to carry your image with me through all of time and space." were only room. But this is an experimental flight—no more than two can out. I have to be at the spaceport by dawn—three hours from now." Ninon said, "But that's three hours, Robert." from him. But he blundered on. "... or very old, no longer the Ninon I know ... oh, all right. But you know all this already. We've had space flight for years, but only rocket-powered, restricting us to our own system. Now we have a new kind of drive. Theoretically we can travel faster than light—how many times faster we don't know yet. I'll start finding out tomorrow, with the first test flight of the ship in which the new drive is installed. If it works, the universe is ours—we can go anywhere." time tomorrow." "What of you—of me—. What does this mean to us—to people?" Again the young spaceman hesitated. "We ... we don't know, yet. We think that time won't have the same meaning to everyone...." "... When you travel faster than light. Is that it?" "Well ... yes. Something like that." "And I'll be—old—or dead, when you get back? If you get back?" Robert leaned forward and buried his face in the silvery-blonde hair "How old are you?" "I've told you before, darling—twenty-four." "How old do you think I am?" He gazed at her in silent curiosity for a moment, then said, "Come to think of it, you've never told me. About twenty-two or -three, I'd say." "Tomorrow is my birthday. I'll be fifty-two." He stared at her in shocked amazement. Then, as his gaze went over the smooth lines of her body, the amazement gave way to disbelief, and he chuckled. "The way you said it, Ninon, almost had me believing you. You can't possibly be that old, or anywhere near it. You're joking." Ninon's voice was cold. She repeated it: "I am fifty-two years old. I knew your father, before you were born." This time she could see that he believed it. The horror he felt was easy it," he said. "A recording! Another one for your collection, I suppose. But of what use is it to you? I have neither money nor power. I'll be gone from this Earth in an hour. And you'll be gone from it, permanently—at your age—before I get back. I have nothing to lose, and you have nothing to gain." Venomous with triumph, Ninon's voice was harsh even to her ears. "On the than an hour. You'd never be able to tell Commander Pritchard in time to make any difference, and he'd never come here to see...." minutes if I called and told him that I have information which seriously affects the success of the flight." The young spaceman's face was white and stricken as he stared for long "We must hurry," she said breathlessly. "We can get to the spaceship Earth at the speed of light, and if we could watch it as it did so, it would still be running but it would never show later time?" The young man said gruffly, "Roughly so, according to theory." "And if the clock went away from Earth faster than the speed of light, wouldn't it run backwards?" The answer was curtly cautious. "It might appear to." "Then if people travel at the speed of light they won't get any older?" Robert flicked a curious glance at her. "If you could watch them from Earth they appear not to. But it's a matter of relativity...." Ninon rushed on. She had studied that book carefully. "And if people travel faster than light, a lot faster, they'll grow younger, won't they?" Robert said, "So that's what's in your mind." He busied himself with parking the car at the spaceport, then went on: "You want to go back in the past thirty years, and be a girl again. While I grow younger, too, into a boy, then a child, a baby, at last nothing...." "I'll try to be sorry for you, Robert." and the admiration of men, real admiration. Suppleness in her muscles and joints again. No more diets. No more transfusions. No The space ship stood on fiery tiptoes and leaped from Earth, high into the heavens, and out and away. Past rusted Mars. Past the busy "How fast are we going?" she asked and her voice was rusty and harsh. "Barely crawling, astronomically," he said shortly. "About forty-six thousand miles a minute." "Is that as fast as the speed of light?" "Hardly, Madame," he said, with a condescending chuckle. He said, "The ship is on automatic control throughout. The course is that strength was flowing back into her muscles and bones. "Nearly twice light speed." "Faster!" she cried. "We must go much faster! I must be young again. Youthful, and gay, and alive and happy.... Tell me, Robert, do you feel younger yet?" knew—youth. Her lost youth, coming back, to be spent all over again. How wonderful! No woman in all of time and history had ever done it. She would be immortal lying in the sling so long. now, Robert?" He answered without turning. "Yes. Many times the speed of light." "I knew it ... I knew it! Already I feel much younger. Don't you feel it too?" He did not answer, and Ninon kept on talking. "How long have we been going, Robert?" He said, "I don't know ... depends on where you are." "It must be hours ... days ... weeks. I should be hungry. Yes, I think I am hungry. I'll need food, lots of food. Young people have good years to be young again.... Long hours she rested in the sling, gaining more strength for the day when they would land back on Earth and she could step out in all the springy vitality of a girl of twenty. And then as she watched through wheel about through space, and she knew that the ship had reached the halfway point and was turning to speed back through space to Earth, uncounted light-years behind them—or before them. And she would still continue to grow younger and younger.... of women?... But I forget. After all, you are only a boy, by now." He said, "I'm afraid our scientists will have some new and interesting data on the effects of time in relation to time. Before long we'll begin to decelerate. It won't be easy or pleasant. I'll try to make you as comfortable as possible." Ninon felt her face go white and stiff with rage. "What do you mean?" Robert said, coldly brutal, "You're looking your age, Ninon. Every year of your fifty-two!" she got back to Earth. And that would be soon. She must rest more, and The light drive cut off, and the great ship slowly decelerated as it space on such a ship as that." He squeezed her hand and said, "We'll find out, Nina. Space travel will come, in our time, they've always said—and there is the proof of it." one of the first, won't you, Robin? And you'll take me with you?" He slipped an arm around her. "Of course. You know, Nina, our scientists say that if one could travel faster than the speed of light one could live in reverse. So when we get old we'll go out in space, very, very fast, and we'll grow young again, together!" Then a shout went up from the two men who had gone up the ramp into the lived so long, to be so old in death. Space travel must be pleasant,

<question>:
How long was the spaceship in flight for in Earth years?

<options>:
A Unknown
B 10 years
C 1 year
D 100 years

<answer>:

A