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

<passage>:
THE GIRL IN HIS MIND By ROBERT F. YOUNG [Transcriber's Note: This etext was produced from Worlds of Tomorrow April 1963 Extensive research did not uncover any evidence that the chocoletto girl's entire costume put her but one degree above the nakedness which the original dance demanded. Nathan Blake's voice was slightly thick when he summoned the waiter who was hovering in the Blake resumed watching. The girl's movements were a delicate blend of moment to match the languid motion of her limbs, wide and feral the next to match the furious bump and grind of her hips. For a chocoletto He beckoned to her when the dance was over and, after slipping into belied her cannibalistic forebears. "You wish a night?" she asked. Blake nodded. "If you are free." "Three thousand quandoes." He did not haggle, but counted out the amount and handed it to her. She slipped the bills into a thigh sheath-purse, told him her hut number and stood up to leave. "I will meet you there in an hour," she said. Her hut was as good a place to wait for her as any. After buying a bottle of native whiskey at the bar, Blake went out into the Dubhe 4 wait for Eldoria?" she asked. Blake nodded. "And you?" Dubhe 4. They died of yellow-water dysentery before their indenture ran out, and in accordance with Interstellar Law I was auctioned off along with the rest of their possessions. Eldoria bought me." Five years as a roving psycheye had hardened Blake to commercial colonization practices nevertheless, he found the present example of man's inhumanity to man sickening. "How old are you?" Blake asked. "Fourteen." "And what are you going to be when you grow up?" "Probably I shall be a psychiatrist. Eldoria is sending me to the "I see," Blake said. He indicated the book on her lap. "Homework?" "Eldoria will be arriving soon. I must go and prepare her dais." flamed in Blake's cheeks, and for a moment he considered leaving he remembered Eldoria's dance, and he went right on sitting where he Anabasis again, and silence was pounding silent fists upon the walls. He was relieved when Eldoria finally arrived. She ushered him into Blake sat down upon it. Nervously he watched Eldoria slip out of her "It's not that so much," Blake said. He rose up once in the night, thinking to find his hotel bed. His next awakening was in the grayness of dawn, and he got up and dressed and In sleep, a strand of her copper-colored hair had tumbled down across image extended for no more than half a mile, but Blake was annoyed that he should have remembered even that much of the wretched terrain. Ideally, a man's mind-country should have been comprised only of the a little closer now. Ever since he had first set foot into his mind, some ten hours ago, Sabrina York did not even know the rudiments of the art of throwing off a mind-tracker. It would have done her but little good if she had, for twelve years as a psycheye had taught Blake all the tricks. where Blake had lived at a much later date. In reality, the places were Warily he stepped inside, adjusting the temperature of his all-weather Blake. At Blake's entry he went right on smoking and watching as though the door had neither opened nor closed. He would go right on smoking and watching till Blake died and the conglomeration of place-times that constituted Blake's mind-world ceased to be. Ironically, he was crash several years ago—and for a long while Blake did not move. mistake: the first word was "Sabrina", and the second was "York". had been common practice for centuries. Even a name like "Sabrina He went through each room systematically, but saw no sign of Sabrina York. He lingered for some time in his own room, wistfully watching his fifteen-year-old self lolling on the bed with a dog-eared copy of The Galaxy Boys and the Secret of the Crab Nebula actually had an impulse to flee. He controlled it and descended the stairs with exaggerated slowness, leaving the house by way of the back door. He picked up Sabrina's trail to revisit, nor a moment that he cared to relive, but Sabrina's trail slightly deeper than its predecessors indicated that Sabrina had streaks of gray that had yet to come into being. Lord, he must have been feeling old to have pictured himself like that! Deirdre was speaking. "Yes," she was saying, "at nine o'clock. And I should very much like for you to come." Blake Past shook his head. "Proms aren't for parents. You know that chance." "I'll thank you not to imply that you're my father. One would think from the way you talk that you are centuries old!" "I'm thirty-eight," Blake Past said, "and while I may not be your father, I'm certainly old enough to be. That young man—" A pink flush of anger climbed into Deirdre Eldoria's girlish cheeks. "What right has he he scrimp and go without in order to put me through high school and college? Has he booked "Please," Blake Past said, desperation deepening his voice. "You're "What do you tomorrow and that we won't see each other again for years and years?" "I'll come to New Earth to visit you," Blake said. "Venus is only a few days distant on the new ships." along. Sometimes I'm tempted to—" Abruptly she broke off. "Very well then," she went on, "I'll say good-by now then." Blake Past stood up too. "No, not yet. I'll walk back to the sorority Blake Present watched them set out side by side toward the remembered register on Blake Past's mind, they did not exist for Blake Present. All that existed for Blake Present were the diminishing figures of the And what were they doing in his mind? unison: "You know who we are, Nathan Blake. You know who we are!" Blake stared at them open-mouthed. Then he turned and fled. both himself and his patient back to the objective world, and not long to use Trevor's term, a past "place-time." Considerable practice was required before the first transition could be achieved, but once it was achieved, successive transitions became progressively easier. Entering another person's mind-world was of course a more difficult undertaking, and could be achieved only after an intensive study of the idea of hiding out in his own mind-world till the statute of a superb stratagem indeed if, shortly after her entry, Sabrina York the place-time materialization of the little office Blake had opened was hiding out in his mind. Retiring to his bachelor quarters, he had entered at the same place-time and set off in pursuit. Her only advantage lost, Sabrina York was now at his mercy. Unless she discovered his presence and was able to locate his most recently materialized place-time before he over-took her, her capture was assured. Only two things bothered Blake. The little office was far in his past, He had been in enough minds and he had read enough on the subject the person involved had wanted to create. Therefore, even assuming that Blake was less well-adjusted than he considered himself to be, why Blake went on. Presently the Walden Pond memory-image gave way to a Sabrina York must have been attracted to the place, for her footprints showed that she had turned in at the gate, walked up the little path and let herself in the door. They also showed that she had left by the same route, so there was no reason for Blake to linger. As a matter of fact, the fascination that fascination, and Blake not only lingered but went inside as well.

<question>:
How much time has passed between Blake's night with Eldoria and his search for Sabrina York in his mind-world?

<options>:
A 7 years
B 10 hours
C 12 years
D 1 hour

<answer>:

B