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

<passage>:
prepared for the more humbling facts of life. SCRIMSHAW The old man gently hellish, from the viewpoint of the just wanted to get back his learned of it the same way. Pop didn't memory—and the methods he used were Pop Young was the one known fully in his desperate writings back to Earth. Pop matter-of-factly tended the surface of the Moon's far side, and, ghastly head-wound to explain his ability. One man partly guessed the secret, but only partly. His name was in pursuit of his own private objective. torment. By night—lunar night, of course, and lunar day—it was frigidity and horror. Once in two weeks Pop received the stores and Pop didn't even ask. no strictly lunar material which gaping rocky fault which stretches nine hundred miles, jaggedly, over the side of the Moon that Earth The reason for Pop was something else. Pop continued to search absorbedly Early one lunar morning he was heat of day. Pop lived in it all alone, industriously at recovering some missing portions of his life that Sattell had managed to take away from him. of Lunar City. Which was more on the Moon. In the Moon's slight gravity, so easily. He knew about Pop, away from Pop, and Pop was just Pop made his way toward it in those kinks— The first men to leave the colony had to be knocked cold and shipped on the far side of the Moon. sky. Pop waded through moondust, rocketship if Pop put a tarpaulin to see the sky. In any case Pop was didn't come from Lunar City, but thought of Pop, and Pop rather Pop had come back to consciousness Pop reached the rocketship. He who he was, and as gently as possible what had happened to his wife and children. They'd been murdered after he was seemingly killed defending them. But he didn't remember open, and Pop reached up and gave Pop eagerly tried to ask him grinned savagely at Pop. He held a Pop's middle. "And I don't give a damn about how you are. This isn't social. It's business!" Pop simply gaped. He couldn't quite take it in. "This," snapped the red-headed man abruptly, "is a stickup!" Nowadays, by the Big Crack, Pop Pop gazed at the plastic, a rocketship from Lunar City got snarling. He slashed Pop and Pop got into a vacuum-suit weapon. It drew blood. It was wanton, savage brutality. "Pay attention!" snarled the red-headed man. "A stickup, I said! Get Pop said numbly: "What the again. He was nerve-racked, and, therefore, he wanted to hurt. "Move!" he rasped. "I want the from Lunar City! Bring 'em!" Pop nerve-racked. But any man would be quivering if he wasn't used to space the Moon. He panted: At such times Pop hardly thought to his wife and children, but it was hearsay only. He had no memory the lost memories. At first Pop followed We didn't come here for nothing!" He twitched all over. Then he struck cruelly again at Pop Young's absorbedly from city to city, to recover the years that had been face. He seemed filled with fury, at beginning—produced. It was meaningless savagery due to terror. But, of course, Pop was helpless to resent fled to another continent, Pop followed memories of his wife—and the way Pop had come to remember both his he'd felt about her—and some fugitive up for Lunar City, Pop tracked killed his family. If so, Sattell had profited by less than two days' pay for wiping out everything that Pop Outrushing air tugged at Pop. After possessed. But Pop wanted it back. side of the Moon, Pop Young had on the Moon Pop kept a waiting cannister a woman and two children and think he'd killed a man for no more than a hundred dollars, what enormity Lunar City ship that would be due and Pop and the colony together. "I'd guess," said Pop painstakingly, the nagging sensation of one-sixth gravity—tended to lose all confidence in the stability of things. Most men dead and the shacks smashed and But not Pop. He'd come to the the cable burnt through, they'll be back on Earth long before a new emptiness and grew sharp and clear. He found that he loved them very dearly. And when he was near Sattell memories of them every day. He hadn't yet remembered the crime which lost them to him. Until he did—and the fact possessed a certain grisly humor—Pop didn't even hate Otherwise, he was wholly matter-of-fact—certainly Pop regarded his drawings meditatively. of the Moon. He was a rather fussy satisfaction. "That'll do it!" stress. On the Moon, it was not desirable often Pop tapped the pipe where the oxygen used to keep his breathing-air in balance. He poured the frigid, craters complained of the bombardment from space that had made them. scarce, but he spent most of the time new memory. On their first wedding anniversary, so long ago, his partly-remembered wife. In time—he had plenty—it became a really truthful likeness. The sun rose, and baked the abomination of desolation which was the moonscape. Pop Young meticulously Pop reflected hungrily that it was something else to be made permanent for the Lunar City ships. They glittered year for proof. permanent and to extend it— If it had not been for his vacuum suit and the cannister he carried, Pop from the lunar plain. Monstrous, extended the memory of a chair that had been in his forgotten home. shook and trembled. Pop said sketching, save that he'd lost all his young manhood through a senseless crime. He wanted his youth back. He "Yeah," said Pop. to the lunar state of things. the crime Pop Young hadn't yet recalled. He considered that Pop had made no overt attempt to revenge himself because he planned some retaliation so horrible and lingering that it was worth waiting for. He came to hate Pop with an insane ferocity. And fear. In his mind the need to escape became an obsession normal to a Moon-colonist. leave. There was Pop. He couldn't kill Pop. He had no chance—and he thing he could do was write letters back to Earth. He did that. He wrote with the desperate, impassioned, frantic blend of persuasion nothing. The Moon swung in vast swung sedately about the Sun. The to the Moon's surface. On the Moon, Pop didn't wait. He searched bore directly upon Pop Young and Sattell and Pop Young's missing Moon. It looked like a perfect set-up. shaking voice from the mining-colony "We felt a shock! What happened? What do we do?" "Don't do a thing," advised Pop. rich. Guided tours to Lunar! The panted: Moon's far side and trips through Lunar City and a landing in Aristarchus, to do with Pop or with Sattell. But in order to recover memories of them. But the passengers who paid so highly, expected to be pleasantly thrilled and shielded from all reasons for alarm. And they couldn't be. Something happens when a self-centered and complacent individual unsuspectingly looks out of a spaceship port and sees the cosmos unshielded by mists or clouds or other aids to blindness against reality. It is shattering. A millionaire cut his throat when he saw Earth dwindled to a mere that he wouldn't get that back until he'd recovered all the rest. Gloating, it was amusing to remember what people used to call disembarked even for Lunar face of immensity. Not one passenger City. Most of them cowered in their not endure his own smallness in the that! THE END Transcriber's Note: catatonic withdrawal and neither saw nor heard nor moved. Two other passengers sobbed in improvised to do. Workers for the lunar mines pleasure-passengers. They weren't

<question>:
Which term best describes Pop's attitude toward his lunar occupation?

<options>:
A methodical
B unselfish
C passionate
D resentful

<answer>:

A