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. the opalescent mists that bathed the city in shimmering whiteness. They hung low, those wispy tendrils of mist, clasping everything in their clinging shelter, destroying dust and germs. Irgi had discovered the Urg and set them up. Irgi enjoyed beauty, and he enjoyed work. It was 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 Irgi drew himself upwards, slowly turning, laving in the quivering Irgi was immortal, and the blue light made him so. and the name and fame of Irgi means nothing to the walls of my city, It was a spaceship. Emerson took his hands from the controls of the gigantic ship that hurtled through space, and wiped his sweaty palms on his thighs. His grey eyes bored like a steel awl downward at the mighty globe swinging in the void. "The last planet in our course," he breathed. "Maybe it has the radium!" "Yes," whispered the man beside him, wetting his lips with his tongue. "No use to think of failure. If it hasn't, we'll die ourselves, down back in the first days of space travel, after Quigg, the American research scientist at Cal Tech, discovered a way to lift a rocket ship off the Earth, and propel it to the Moon. They had been slow, lumbering vessels, those first spaceships not at made the first flight through space, died of cancer. As the years passed to a decade, and the ships of Earth rode to Mars and Venus, it began to be apparent that a lifetime of space travel meant a hideous death. Scientists attributed it to the cosmic rays, for out in space there was no blanketing layer of atmosphere to protect the fleshy tissues of man from their piercing power. It had long been a theory that cosmic rays were related to the birth of new life in the It meant death to travel in space, and only the stupendous fees paid to the young men who believed in a short life and a merry one, kept the ships plying between Mars and Earth and Venus. Lead kept out the cosmic rays, but lead would not stand the terrific speed required to lift a craft free of planetary gravity contagious to a certain extent. The alarm spread. Men who voyaged in space were segregated, but the damage had been done. The Plague spread, and ravaged the peoples of three planets. Hospitals were set up, and precious radium used for the fight. But the barge by comparison. And mankind gave it to Valentine Emerson to take it out among the stars to find the precious radium in sufficient quantities to halt the Plague. It had not been easy to find a crew. The three worlds knew the men were going to their doom. It would be a miracle if ever they reached a single planet, if they did not perish of space cancer before their first goal. Carson Nichols, whose wife and children were dying of the Plague, begged him for a chance. A murderer convicted to the Martian salt mines, Karl Mussdorf, grudgingly agreed to go along on the promise Now Emerson was breathing softly, "Yes, it had better be there, or else "You know a better way to die, of course," replied Emerson. Emerson snorted, glancing down at the controls. Beneath his steady fingers, the ship sideslipped into the gravity tug of the looming orb, shuddered a moment, then eased downward. "Tell Gunn to come up," ordered Emerson. "No need for him to be below." "The spectroscope'll tell us. Break it out." "You bet." The ship rocked gently as Emerson set it down on a flat, rocky plain between two high, craggy mountains that rose abruptly from the tiny valley. It was just lighting as the faint rays of the suns that served Emerson twisted dials and switches. Emerson shook his head, frowning, suddenly glad that the others had and looked at Emerson, who went to the port window vivid, intense. They could feel its surging power tingling on their skins. Beneath them, the jagged peak of the mountain almost grazed the hull. Spread out under their eyes was the panorama of a dead planet. Great rocks lay split and tumbled over one another in a black peaks to a sullen sky. To the south, beyond the rocks, lay a white waste of desert. To the west— "A city," yelled Nichols, "the place is inhabited. Thank God, thank God—" "For what? How do we know what they're like? An inhabited planet doesn't mean men. We found that out—several times." "We can hope," said Emerson sharply. "Maybe they have some radium, stored so that our spectroscope couldn't pick it up." The mighty globe that hung over the city glimmered in the morning suns. Beneath it, the white towers and spires of the city reared in alien loveliness above graceful buildings and rounded roofs. A faint mist A section of the globe slid back, and the spaceship moved through the opening. The globe slipped back and locked after it. "They have us now," grunted Mussdorf. He slid his fingers along the transparent window, pressing hard, the skin showing white as his "Bring us some," cried Emerson suddenly, and turned again to look out the window. The spaceship settled down on the white flagging of an immense square. pressed in on them. "Think it's safe to go out?" asked Nichols. "Try the atmospheric recorder," said Emerson. "If the air's okay, I'd "Look out !" yelled Emerson. nearly collapsed. He hung limp in a gigantic tentacle as Emerson ran Emerson, while its other arms stabbed out at Gunn and Nichols, catching "Hold on," called Emerson, dodging and twisting, gun in hand, seeking a spot to fire at. The thing dropped the Earthmen suddenly its legs gathered beneath it and launched it full at Emerson. Caught off guard, the Earthman lifted Irgi bent to wrap long arms about the queer beings, lifting them. His knew a way to cure it. Irgi knew a way to cure anything. Irgi dropped his burdens. With quick tendrils he adjusted straps to electric charges all intelligent beings cast," Irgi said aloud, glad at grew nebulous, then cleared. Irgi interwoven like ribbons in the sunlight. On the tallest and largest buildings were great fields of metal painted a dull luster, where queerly wrought flying ships landed and took off. read their meaning. This man spoke to one named Emerson, commissioning Irgi stared upward at a colossal figure graven in lucent white marble. Irgi unfastened clamps, and rolled the screen aside. He reached to a Opening the laboratory door, Irgi passed out and closed it behind him. "Got to get free," Emerson panted, straining against the wristbands. Emerson. Something tells me I'd get a fortune for it, on Earth." Emerson squirmed helplessly, cursing him, saying, "What's gotten into

<question>:
How did Emerson's ship get to the city where Irgi lived?

<options>:
A The space ship started tumbling out of control on its way down to the planet, and they landed next to the domed city by dumb luck.
B The crew saw there was no sign of life where they originally touched down, so they flew in atmospheric mode around the planet till they saw the city and landed again.
C Irgi used his powers to move the ship from the desolate patch of rocks where it landed, to the city.
D The crew made a careful reconnaissance of the planet before choosing a landing site, and saw the opening in the city's globe covering and aimed for that.

<answer>:

C