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

<passage>:
They weren't human. They were something in short, humanity's hopes for survival! The Starship be restless to end her fool's errand here, two hundred light years from during the night?" knew anything. They looked like overgrown fireballs, but seemed to have an almost sentient curiosity about anything moving on the ground. "And our two cadets sneaked out again. Barker followed them, but lost them in the murk. I've kept a signal going to guide them back." Gwayne swore softly to himself. Earth couldn't turn out enough starmen in the schools, so promising kids were being shipped out for training as cadets on their twelfth birthday. The two he'd drawn, Kaufman and Pinelli, seemed to be totally devoid of any sense of caution. Of course there was no obvious need for caution here. The blobs hadn't seemed dangerous, and the local animals were apparently all herbivorous something had happened to the exploration party fifteen years back, and to the more recent ship under Hennessy that was sent to check Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign to the men who'd deserted their ship and its equipment, he'd have to report back. He would have left before, if a recent landslip hadn't exposed enough of the buried ship for his metal locators to spot from the air by speed to a spot near the ship, to hover excitedly above something that moved there. He saw the two cadets then, heading back to the waiting ship, just beyond the movement he'd seen through the mist. Whatever was making the fog swirl must have reached higher ground. Something began to heave upwards. It was too far to see clearly, but Gwayne grabbed the microphone, yelling into the radio toward the cadets. They must have seen whatever it was just as the call reached them. Young Kaufman grabbed at Pinelli, and they swung around together. Then the mists cleared. Under the dancing blobs, a horde of things was heading for the cadets. Shaggy heads, brute bodies vaguely man-like! One seemed to be almost eight feet tall, leading the others directly toward the spacesuited cadets. Some of the horde were carrying spears or sticks. There was a momentary halt, and then the leader lifted one arm, as if motioning the back at the exit deck. Men were dashing in, stumbling around in Gwayne dashed for it as the exit port slid back. The huge leader suddenly waved and pointed toward the jeeps that were racing toward him. He made a fantastic leap backwards. Others swung about, two of them grabbing up the cadets. The jeep was doing twenty miles an hour now, but the horde began to increase the distance, in spite of the load of the two struggling boys! The creatures dived Then it cleared to show the mob of creatures doubling back on their own trail to confuse the pursuers. The creatures vanished as Barker fought to turn to follow them. The other jeeps were coming up, by the sound of their motors, but too late to help. They'd have to get to the group with the cadets in a hurry or the horde would all vanish in the uneven ground, hidden by the fog. A blob dropped down, almost touching Gwayne. against the windshield, just as he made out the form of the eight-foot leader. The thing was standing directly ahead of him, a cadet on each shoulder. The wheels locked and the jeep slid protestingly forward. The creature sound, and it collapsed. Gwayne eased back slowly, but it made no further move, though it was still breathing. Another jeep had drawn up, and men were examining the cadets. Pinelli was either laughing or crying, and Kaufman was trying to break free to kick at the monster. But neither had been harmed. The two were loaded onto a jeep while men helped Barker and Gwayne stow the bound monster on another before heading back. detailed to save it and revive it. Find out if it can make sign and why that ship was buried against detection. This thing may be the makes no sense. We've scoured this planet by infra-red, and there was "Troglodytes, maybe," Gwayne guessed. "Anyhow, send for me when you get anything. I've got to get this ship back to Earth. We're overstaying our time here already." The reports from the cadets were satisfactory enough. They'd been picked up and carried, but no harm had been done them. Now they were busy being little heroes. Gwayne sentenced them to quarters as soon If they could get any story from the captured creature, they might save time and be better off than trying to dig through Hennessy's ship. That was almost certainly spoorless by now. The only possible answer seemed to be that the exploring expedition and Hennessy's rescue group had primitives have gotten to the men inside Hennessy's ship? Why was its these creatures that a space ship's metal finders could be fooled by a little more than a hundred feet of solid rock? They'd buried the ship something—and find it fast. Earth needed every world she could make remotely habitable, or mankind was probably doomed to extinction. The race had blundered safely through its discovery of atomic weapons prevent an interplanetary war with the Venus colonists. It had found a drive that led to the stars, and hadn't even found intelligent life render the whole Solar System uninhabitable for millenia. To survive, man had to colonize. explorers went out in desperation to find what they could began filling worlds with colonists, carried in deep sleep to conserve would be spawning grounds for mankind in spite of the efforts. Each was it now seemed, no more time could be wasted here. Primitives could be overcome, maybe. It would be ruthless and unfair to strip them of their world, but the first law was survival. He went to the port and glanced out. About sixty of the things were For the return of their leader—or for something that would give the ship to them? seemed to understand, and was making a comment as the captain dashed in. on the gold ornament of a captive earthman, even to learn a little ground where no ingenuity could ever recover it to bring life to the ship again. He'd have to tell the men and women of the crew later, after he'd had however much they might hate it at first. But there was no putting off hull. It doesn't show yet—but we're changed. In another month, Earth food would kill us. We've got to stay here. We'll bury the ships deeper this time, and Earth won't find us. They can't risk trying a colony where three ships vanish, so we'll just disappear. And they'll never years—would be primitive savages in three generations. The Earth Nothing from the ship would last. Books could never be read by the new She was silent a long time, staring out of the port toward what must They have to touch us. I've been touched, but the rest could go back." same answer he had found for himself. "The spawning ground!" It was the only thing they could do. Earth needed a place to plant her seed, but no world other than Earth could ever be trusted to preserve Here, though, the blobs had adapted men to the alien world instead of children of man's race could grow, develop and begin the long trek back to civilization. The gadgets would be lost for a time. But perhaps "We're needed here," he told her, his voice pleading for the The fifty men and women on this ship will be needed to start them with a decent chance. We can't go to Earth, where nobody would believe or accept the idea—or even let us come back. We have to stay here." "No," he told her. "Replenish the stars." Some day, though, their children would find a way to the starlanes again, looking for other worlds. With the blobs to help them, they Some day, the whole universe would be a spawning ground for the

<question>:
What isn't a reason for bringing the creature back to the ship?

<options>:
A they want to learn more about him
B they want to know why the ship had been hidden
C they want to know what happened to Hennessy's group
D they want revenge for what it did to the cadets

<answer>:

D