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

<passage>:
and carry her away to bright adventures. But when he came in a metal globe, she knew only [Transcriber's Note: This etext was produced from Planet Stories March 1943. Extensive research did not uncover any evidence that gigantic child. There was no sign of clear sky and stars—the heavens were roofed by a perpetual ceiling of dust-clouds. tonight, like you!" shrugged hopelessly. "I don't care," she said slowly. "It will be nice generally of truly elfin proportions, so delicately slim that they seemed incapable of the slightest exertion. But Koroby's body She rested against the door-frame, watching the red of the afterglow had to strain forward to hear her. "I wish that there were other worlds than this—and that someone would drop out of the skies and claim "Well—heigh-ho! There don't seem to be any other worlds, and nobody is going to steal me away from Yasak, so I might as well get on with my preparations. The men with the litter will be here soon to carry me to the Stone City." trilled softly to herself, "Yes, I am beautiful tonight—the loveliest woman Yasak will ever see!" And then, regretfully, sullenly, "But oh, loomed darker than the gloomy sky. "Are you ready?" he asked. Trossa—and you, Shia. Goodbye, darlings, goodbye—come and see me "Goodbye, Koroby!" "Goodbye! Goodbye!" They crowded around her, embracing, babbling farewells, shreds of advice. Trossa began to cry. Finally Koroby broke old litter that Koroby had been watching come and go ever since she "You're comfortable?" the litter bearer asked. Koroby nodded, and the The procession filed into the jungle, into a tunnel of arched branches, the litter seemed to float along—none of the bearers even They came to a cleared space of waist-high grass. It was like a canyon Then the litter resumed its dream-like floating on the backs of the men. The conveyance halted. Koroby leaning out, the men peering around them, ceased. There was nothing to be heard except the whisper of the breeze what had it been, and where—just exactly—could one suppose it had green light nor detonations. The bearers stooped to lift the litter's "I don't care," she said. "Take me there." Her order had reached the in that direction—we'd have to hack our way as we go along. And who They set the litter down. "We can't do that," one man said to another. The men eyed each other, mentally shrugging. "Well—" one yielded. won't take me, I'll go by myself. I must get to that fire, whatever it is!" She put a hand to her heart. "I must! I must!" Then she faced the slipped to the cushions. They turned off the path, plodded through the the disturbed blades. By the time they reached the source of the light, they were quite demoralized. The musicians had not accompanied them, preferring to carry the message to Yasak in the Stone City that his prospective with dust, striped with blood where the dry grass-stems had cut them. they had abandoned the litter finally. Her blue drapery was ripped and her carefully-arranged braids had fallen loose dust on her face had hid its youthful color, aging her. The expedition emerged from the jungle on a sandy stretch of barren land. A thousand feet away a gigantic metal object lay on the sand, crumpled as though it had dropped from a great distance. It had been age. It would take a giant to make such a ponderous thing as this. crumpled part, and a strange bubbling and hissing filled the air. the destruction, stood a man..... litter-carriers watched the girl go, unconsciously huddling together as if feeling the need for combined strength. They withdrew into the jungle's shadows, and waited there anxiously, ready at any moment to run away. almost frightening, unhuman, mechanical. It was unlined and without And maybe more And though we'll neither speak, We'll know the score—" "No name? But who are you? Where are you from? And what is that?" She "The vehicle by which I came here from a land beyond the sky," he said. "From a world known as Terra." She was silent a moment, stunned. So there was another world! Then she Here the similarity between her dream and actual experience ended. of guessing. He said, "No, I am not going to take you back there." Her Terra—it is incredibly far away." whisper. They watched the melting globe sag on the sand. Then Koroby memory." "Remarkable indeed!" she mocked. "No one here could do that." "But my race is infinitely superior to yours," he said blandly. "You little people—ah—" He gestured airily. Her lips tightened and her eyes narrowed. "And I?" superior to me— me Her eyes jerked wide open and she took a deep breath. "And just who do you think you are? A god?" He shook his head. "No. Just better informed, for one thing. And—" "I have none." He seemed just a trifle bored. "We gave up names long ago on my world. We are concerned with more weighty things than our own selves. But I was not quite a sigh. "Here I am stranded on Venus, my ship utterly where is the nearest city? I must communicate with my people at once." They took another glance at the metal globe and the green fire, which by now had died to a fitful glimmer. Then the stranger and the girl But at last she could go no farther. She had forced herself along because she wanted to impress this indifferent man that she was not as cry almost of relief, she sank to the ground and lay semi-conscious, so Yasak in it. The litter-carriers who could still speak blurted out what then dropped into sleep. "You will stay with me while you are in the City, of course," Yasak "Yasak's out somewhere. The stranger man is in the room at the end of "Thank you for carrying me, Robert." He did not reply. "Robert—I that we both flew away in it. Yasak had to stay behind, and he was "Don't you think it was an exciting dream?" He shook his head. "But and there shouldn't be here, either. It's a waste of time." that I'm not worthy of you—" you! You don't care the least bit about me—and I've shamed myself in could kill you!" Robert stood immobile, no trace of feeling marring the "And now if you're through playing your incomprehensible little scene," must go back to my wrecked ship now and arrange the signals there." He striding toward his sky-ship, a widening cloud of dust rising behind from the heat. The fire spread in a long line over the prairie. Above They watched the conflagration, Yasak and Koroby, from a higher part of walking with several others over the smoking earth and still warm ashes spot and scooped ashes away, dog-fashion, until Robert's remains were laid clear. There were exclamations of amazement and perplexity from the people. It was a metal skeleton, and the fragments of complicated machinery, caked with soot. "He wasn't human at all!" Yasak marvelled. "He was some kind of a toy made to look like a man—that's why he wore armor, and his face never changed expression—" "Magic!" someone cried, and backed away. "Magic!" the others repeated, and edged back ... and that was the end of one of those robots which had been fashioned as servants for Terrestial men, made in Man's likeness to appease Man's vanity, then conquered him.

<question>:
What is revealed about the fate of humans on Earth at the end of the story?

<options>:
A They have all left for other planets
B Robots have subjugated them
C Robert is the last human left since all the others died out due to disease
D They have evolved into a new species of cyborgs

<answer>:

B