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

<passage>:
Venusian speech, "How I envy you, Koroby! I wish I were being married tonight, like you!" Koroby stared defiantly at the laughing faces of her bridesmaids. She shrugged hopelessly. "I don't care," she said slowly. "It will be nice to have Yasak for a husband—yes. And perhaps I do love him. I don't know." She tightened her lips as she reflected on it. seemed incapable of the slightest exertion. But Koroby's body was—compared to her friends'—voluptuous. She rested against the door-frame, watching the red of the afterglow deepen to purple. "I want romance," she said, so softly that the girls 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 do you think that it would look a little too much—?" Her eyes sought the mirror, and her lips parted in an irreprehensible smile. She trilled softly to herself, "Yes, I am beautiful tonight—the loveliest woman Yasak will ever see!" And then, regretfully, sullenly, "But oh, if only He would come ... the man of my dreams!" loomed darker than the gloomy sky. "Are you ready?" he asked. Koroby twirled before the mirror, criticizing her appearance. "Yes, ready," she said. "Ready!" the girls cried. Then there was a little silence. "Goodbye, Koroby!" farewells, shreds of advice. Trossa began to cry. Finally Koroby broke "Thought I heard something," the other replied. "Shrill and high—like something screaming—" Koroby lifted a hand. "Stop the litter," she said. is!" She put a hand to her heart. "I must! I must!" Then she faced the green glare again, smiling to herself. her carefully-arranged braids had fallen loose dust on her face had hid its youthful color, aging her. Koroby stopped short, clasping her hands and involuntarily uttering a squeal of joyful excitement, for between her and the blaze, his eyes on the destruction, stood a man..... whispered urgently, reaching after her, but Koroby pushed him away. The run away. But Koroby, with supreme confidence, walked toward the stranger, her lovely body graceful as a cat's, her face radiant. The man did not hear her. She halted behind him, waited silent, expectant, excited—but he did not turn. The green fire sputtered upward. At last the girl stepped to the man's side and gently touched him again. He turned, and her heart faltered: she swayed with bliss. He was probably a god. Not even handsome Yasak looked like this. Here was a face so finely-chiseled, so perfectly proportioned, that it was The stranger did not speak, merely gazed deeply into Koroby's eyes. And she, returning the gaze, wondered if he was peering into her very soul. The words of a folk-ballad came to her: "—He'll smile and touch my cheek, And maybe more Suddenly he put his hands to her cheeks and bent close to her, his eyes peering into hers as though he were searching for something he had lost in them. She spoke her thought: "What are you doing? You seem to be reading my mind!" Without removing hands, he nodded. "Reading—mind." He stared long into her eyes. His dispassionate, too-perfect face began to frighten her. She slipped back from him, her hand clutching her throat. He straightened up and spoke—haltingly at first, then with growing assurance. "Don't be afraid. I mean you no harm." She trembled. It was such a wonderful voice—it was as she had always dreamed it! But she had never really believed in the dream.... Koroby watched him, forgot her fear, and went eagerly to him, took his She was silent a moment, stunned. So there was another world! Then she asked, "Is it far? Have you come to take me there?" Here the similarity between her dream and actual experience ended. What was he thinking as he eyed her for a long moment? She had no way of guessing. He said, "No, I am not going to take you back there." Her whisper. They watched the melting globe sag on the sand. Then Koroby "I read your mind," he explained indifferently. "I have a remarkable memory." "Remarkable indeed!" she mocked. "No one here could do that." Her eyes jerked wide open and she took a deep breath. "And just who do you think you are? A god?" Koroby cut him short. "What's your name?" He handed the stick to Koroby, but she was afraid to touch it. This was a strange light that gave no heat, nor flickered in the breeze. Finally she accepted it from him, but carried it gingerly at arm's length. She refused to believe that he had no name, and so he named himself. "Call me Robert. It is an ancient name on Terra." "Robert," she said, and, "Robert." 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 inferior as he might think—but now she could not go on. With a little cry almost of relief, she sank to the ground and lay semi-conscious, so glanced at Robert furtively to see if this had impressed him at all. "Oh," Koroby said disappointedly, and sat upright. "I feel as if I'd furious. Robert! Aren't you listening?" "I hear you." "Don't you think it was an exciting dream?" He shook his head. "But why? Robert"—she laid longing hands on his shoulders—"can't you see that I'm in love with you?" He shrugged. "I believe you don't know what love is!" "I had a faint idea of it when I looked into your mind," he said. "I'm afraid I haven't any use for it. Where I come from there is no love, and there shouldn't be here, either. It's a waste of time." "Robert—I'm mad about you! I've dreamed of your coming—all my life! Don't be so cruel—so cold to me! You mock me, say that I'm nothing, that I'm not worthy of you—" She stepped back from him, clenching her hands. "Oh, I hate you—hate you! You don't care the least bit about me—and I've shamed myself in front of you—I, supposed to be Yasak's wife by now!" She began to cry, hid her face in suddenly lax fingers. She looked up fiercely. "I could kill you!" Robert stood immobile, no trace of feeling marring the perfection of his face. "I could kill you, and I will kill you!" she sprang at him. "You'll hurt yourself," he admonished kindly, and after she had pummeled his chest, bruising her fingers on his armor, she turned away. Robert said, "I hope you will excuse me. I regret that I have no Koroby huddled on a chair, sobbing. Then she dried her eyes on the Robert was walking away. Her eyes hardened, and her fingers spread and calling after him, "Robert! Robert! Come back!" but he did not seem to hear. She watched him a little longer. Then she deliberately stooped and drew Koroby reached the City wall, panted through the gate into a shrieking than gasp for air—and shook her violently. "You fool, you utter fool! What did you think you were doing?" Others clamored around her, changed expression—" "Magic!" someone cried, and backed away. "Magic!" the others repeated, and edged back ... and that was the Terrestial men, made in Man's likeness to appease Man's vanity, then conquered him.

<question>:
Why does Robert reject Koroby?

<options>:
A He is in love with another person on his home planet
B He doesn't want to become involved with a married woman
C He doesn't have emotions because he is actually a robot
D He thinks her love is too sudden to actually be true love

<answer>:

C