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

<passage>:
Irgi was the last of his monster race, guardian of a dead planet, master of the secret of immortality. It was he whom the four men from Earth had to conquer to gain that secret—a tentacled Irgi was the last of his race. There was no one else, now been no others for hundreds and hundreds of years. Irgi had lost count Only Irgi, alone. clinging shelter, destroying dust and germs. Irgi had discovered the Urg and set them up. Irgi enjoyed beauty, and he enjoyed work. It was with a pale blue luminescence that glimmered upon metal rods and bars In the doorway, Irgi paused and ran his eyes about the chamber, sighing. block possess. There was nothing they could not do, if Irgi so willed. Irgi moved across the room. He pressed glittering jewels inset in a control panel on the wall, one after another, in proper sequence. Irgi drew himself upwards, slowly turning, laving in the quivering in their patterns of color, watching it splash and spread over his chest and torso. Where it touched, a faint tingle lingered Irgi was immortal, and the blue light made him so. He touched the jeweled controls, shutting the power to a low murmur. He "I must speak," Irgi said as he moved along the corridor. "I have not will talk to them and tell them how lonely Irgi is." and the name and fame of Irgi means nothing to the walls of my city, nor to the Chamber of the Cones, nor even—at times—to Irgi himself." Emerson took his hands from the controls of the gigantic ship that cosmic rays were destroying the life they had created. It meant death to travel in space, and only the stupendous fees paid to contagious to a certain extent. The alarm spread. Men who voyaged in "You bet I do. There's a sweet little redhead in New Mars. She'd make dying a pleasure. In fact," he chuckled softly, "that's just the way I'd let her kill me." Emerson snorted, glancing down at the controls. Beneath his steady fingers, the ship sideslipped into the gravity tug of the looming orb, Emerson touched his forearm gently, and shuddered. Something whispered in the ship. They jerked their heads up, stood listening. The faint susurration swept all about them, questioning, "Gawd," whispered Gunn. "Wot is it, guv'nor?" Emerson shook his head, frowning, suddenly glad that the others had The rustle ceased. The silence hung eerily in the ship. The men looked "We'll see what his next move is," he muttered. "If he gets too fresh, we'll try a sun-blaster out on him." The ship began to glow softly, flushing a soft, delicate green. The light bathed the interior, turning the men a ghastly hue. Gunn shivered and looked at Emerson, who went to the port window "Wot's happenin' now?" choked Gunn. vivid, intense. They could feel its surging power tingling on their hull. Spread out under their eyes was the panorama of a dead planet. Beneath it, the white towers and spires of the city reared in alien that is controlling this green beam." The green beam was gone, suddenly. The uncanny silence of the place germs. No dust. Just clean air!" Emerson leaped to his side, staring, frowning. He began to laugh, then caught himself. "No disease," he whispered, "and every one of us is going to die of cancer." mist came swirling into the ship. tentacled arms and legs slithered out with unthinkable rapidity, fell nearly collapsed. He hung limp in a gigantic tentacle as Emerson ran them up and shaking them as a terrier shakes a rat. The thing dropped the Earthmen suddenly Irgi stared at the things that lay on the white flagging. Queer beings they were, unlike anything Irgi had ever conceived. Only two legs, only short work of them if an Urgian cat existed any more, and Irgi had glance back at the creatures again, and shook his head. Strange beings they might be, but they had mastered interplanetary travel. Well, he'd Irgi bent to wrap long arms about the queer beings, lifting them. His eyes were caught suddenly by the lumps protruding from their arms and legs, from face and chest. The growth disease! That was bad, but Irgi knew a way to cure it. Irgi knew a way to cure anything. He had been glad to find these creatures. They were someone to converse with after centuries of loneliness. But as he approached them ship. He had caught a confused, angry murmur on the radiation recorder. to them, speeded up the vibrations to twelve or fifteen a second. their minds. Once unconscious, he could tap their memories with an electrigraph screen. That should be absorbing. It made Irgi happy, reflecting upon it, and Irgi had not known happiness for a long time. Irgi dropped his burdens. With quick tendrils he adjusted straps to "It's short-circulated their nervous systems for a while, absorbed the electric charges all intelligent beings cast," Irgi said aloud, glad at wheeled forward a glassy screen "I wonder if they've perfected this," Irgi mused. "They must be aware that the brain gives off electrical waves. Perhaps they can chart those waves on graphs. But do they know that each curve and bend of those waves represents a picture? I can translate those waves into He slouched a little on his tentacles, squatting, gazing at the screen grew nebulous, then cleared. Irgi The scene changed suddenly. He looked into a hospital room and watched A tall, lean man in white looked out at him. His lips moved, and Irgi plague. The thoughts of this Emerson were coming in clearer, as Irgi in sudden interest, flipped over different dials. The unspoken thoughts pouring into his brain through the screen continued. The words he did Irgi stared upward at a colossal figure graven in lucent white marble. . He rose suddenly, standing upright on his tentacles, swaying gently. Why, he had the power to make himself immortal! These creatures would gladly build statues to him! True, he could not create a nation— but Irgi unfastened clamps, and rolled the screen aside. He reached to a Turning, he saw the figures of the four men stiffen to rigidity as a red aura drifted upward from the tabletop, passing through them as if "That will prepare their bodies for the Chamber of the Cones," he said. "When they realize that I am their friend, they will gladly hear my Opening the laboratory door, Irgi passed out and closed it behind him. It was the sweat of agony trickling down his forehead and over his eyes and cheeks that woke Emerson. He opened his eyes, then clamped them and strapped even as he. They were unconscious. What right had they to It woke the others. They too, bellowed and screamed and sobbed, and "Got to get free," Emerson panted, straining against the wristbands. "Maybe—maybe he's vivisecting us," moaned Nichols. "With rays or—or They turned their heads to watch, biting their lips, the sweat standing aloft and laughed harsh triumph. "You know, it's funny—but I feel great. Huh, I must've sweated all the Emerson squirmed helplessly, cursing him, saying, "What's gotten into

<question>:
What occurs to Irgi while watching the images of the crewmen's brain waves?

<options>:
A It occurs to him that he could save the human race from space cancer using the same special cleansing energy source that saved him.
B It occurs to him that he could reconstruct the civilization and nation of Urg by bringing thousands of Terrans there to start over.
C It occurs to him that Mussdorf is going to be a big problem.
D It occurs to him that human DNA is not similar enough to his DNA to allow hybridization to take place, so he is still going to be the last of his race.

<answer>:

A