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

<passage>:
Terrans to reach the world of Tepokt. For those who did land there, there was no returning—only the bitterness of respect—and justice! The Tepoktan student, whose blue robe in George Kinton's opinion clashed with the dull purple of his scales, twiddled a three-clawed hand for attention. think to watch him, they tell me Klaft looked uneasy, embarrassed. "Get on with it, Klaft! Please!" "In the night, then, Albirken ... and quite rightly, I think—" Kinton smiled wrily, and ran a wrinkled hand through his graying hair. In the clicking Tepoktan curious to see some of Tepokt. Perhaps—" Tepokt, leaving him the only survivor. Barred off as they were from venturing into space, the highly civilized Tepoktans constantly displayed the curiosity of dreamers in matters related to "Albirken," he said, "was soon sign of emphatic disagreement. "Why did he say he was traveling Was the man crazy? "He did not say," answered messenger, noticing for the first Tepoktan was slightly under Kinton's height of five-feet-ten, with a long, supple trunk. Under that his suspicions concerning Birken had been only too accurate. Why was it one like him who got through? he asked himself in silent anguish. After ten years. The Tepoktans had been thinking well of Terrans, but now— He did not worry about his legs was not obvious enough established, whether or not he could again hold up his head before the purple-scaled Even if they had been aroused told himself, he would not have been concerned about himself. He He could tell that they were wondered yet again why any pleased by his admiration, and Kinton remained conscious of the fact that in many fields he was unable to offer the Tepoktans any new ideas. In one or two ways, he believed, no Terran could teach their experts anything. "Then will you tell us, George, more about the problems of your "We must get into the air immediately," he told Klaft. "Perhaps we may see him before he reaches—" the rear of the austerely simple chamber parted. Klaft, the Tepoktan serving the current year ground outside drop away. Only upon turning around did he realize that two armed Tepoktans had materialized in time to follow Klaft inside. other he recognized for an officer "I am informed that another ship from space has reached the surface of Tepokt. My presence is requested in case the crew are of my own planet." To protect him, he wondered. Or to get Birken? about Birken. Tepoktan scientists, historians, and philosophers had respectfully but eagerly gathered every sharp with the worry he endeavored Klaft's respectful protest. "But George! It was enough might be offended, George," he answered at last. clicked his showy teeth uncomfortably. "Perhaps they thought you that they were present when you received the news. They can talk was responsible for Birken, who from the somewhat longer revolutions of Tepokt. The time would come when he would age and die. Whose wishes would He wondered what to do. He then prevail? that Birken was delirious, or acting thought. Maybe he shouldn't Maybe he was wrong, he have told him about the ship!" Kinton muttered, To help himself forget the rather preoccupied manner in which some of the Tepoktan scientists occasionally eyed him, he colonial authorities will trail him all right. Probably scared the peered down at the big dam of around to see if he had been overheard. gnawing the knuckle of his left thumb. "He's on the run, Kinton, disturbed, tried to remember whether he had spoken in Terran or Tepoktan. Would Birken listen if he tried he reflected. They hadn't needed they had proved the unpredictability Tepokt were underdeveloped. In the first place, the population was smaller and had different drew his attention. He "We do not know if they have always been meteorites," the Tepoktans had told Kinton, "or whether part of them come from a destroyed satellite Birken looked up. He continued alighted, however, Birken had For ten years, Kinton had failed to work up any strong desire to try it. The Tepoktans "Birken!" shouted Kinton. called the ever-shifting lights the Dome of Eyes, after a myth supposed to watch over a single individual on the surface. Like their brothers on Terra, the native them jokingly that he felt no was only about twenty miles Birken showed no more change of Tepokt was passing by the time he set foot on the landing field, and he paused to look six or eight paces, irritated despite his anxiety at the way Birken from his home. The brief twilight each was being scrutinized by leg or not, he could probably break the older man in two. He glanced back at the Tepoktans He turned again to Birken, a Tepoktan proverb often applied [106] by the disgruntled scientists if some miracle gets him Kinton observed, however, that his aide also stared upward for a long moment. The Tepoktans loved speculating about the as he realized that keeping Birken through, that's worse! He's nothing to turn loose on a civilized unsolvable. They had even founded here would also expose a highly cultured people to an unscrupulous "Birken!" he shouted. "For Birken stopped at that. He regarded the motionless Tepoktans with a derisive sneer. "They don't look too eager to me," he taunted. Kinton growled a Tepoktan expression the meaning of which he had deduced after hearing it time that the latter was an under-officer startled changes in the carefully By the time Kinton's aging muscles obeyed his impulse to sudden anger. Birken was running spaceship, and had covered nearly half the distance. Kinton ran at the Tepoktans, brushing aside the concerned Klaft. He snatched the heavy guessed. "I bow to your wisdom, George," said the plump Tepoktan doctor who appeared to be in charge. decided that Birken had not come if he was afraid of his steadied on Birken as the latter "From your records and drawings, of course, George, for I have not yet had the good fortune Why, he looked scared when Birken's head. again. The spaceman considered that "Al Birken," he introduced destroy the ship! Or Birken's stare was suspicious. requested, turning toward the helicopter. "Yes, George," said Klaft. "George...?" "Well?" "It would be very instructive—that him. "You mean there are new Terran colonies?" "Yeah. Jet-hoppers spreadin' they'd be creepin' around this he was aware of Klaft edging The other eyed him for a few He resolved to be wary of the visitor. Birken replied at last. excitement. "Why did you not let him go, George?" "What? Why ... why ... he would have destroyed the ship he had wasted in talk while the others with him stood attentively about. we can only guess what he did "I understand, George, the logic of it," said Klaft. "I meant ... it is not my place to say this felt that he should not neglect the few meetings which were the only way he could repay the Tepoktans for all they did for him. On the other hand, the chance Birken's leg, inserting a metal they had known before Kinton Birken seemed eager to learn all Kinton could tell him about the planet, Tepokt. About himself, he was remarkably reticent. Kinton worried about this. "I think we should not expect this Albirken is such a one, George?" "It is not impossible," admitted Kinton unhappily. "He will Tepokt's gravity while fleeing from justice." To himself, he wished he had not told Birken about the spaceship. He didn't think the man exactly believed his explanation

<question>:
Why was George suspicious of Al Birken?

<options>:
A George thinks that Al may be a prisoner on the run
B George thinks Al may be a scout for land-grabbers
C George is worried Al is there to steal Tepoktan knowledge
D George is worried Al will try to conquer the Tepoktans

<answer>:

A