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

<passage>:
But he was afraid. He reached up and grasped the handle of the door and he saw that his fingers were red with the wetness which had come from his hurt head. Slowly he slipped to the cool floor—how his head was burning!—and for a long time he lay there, thinking he would never rise again. Inside he Every day for a week now, Rikud had come to the viewport to watch from the steady whining Rikud had heard all twenty-five years of his "There is Rikud on the floor!" Tugging at the handle of the door, Rikud pulled himself upright. heard the voices again, and soon a foot and then another pounded on disturbed Rikud, although he could not tell why. And, because he had red eyes. Rikud screamed and hurtled back through the corridor, and his face was so terrible in the light streaming in through the viewport that If he had understood the term, Rikud would have told himself this was Rikud got up and ran. He reached the door again and then he slipped Rikud knew he should be exercising now, or bathing in the rays of the So tightly did he grip the handle that his fingers began to hurt. And his heart pounded hard and he felt the pulses leaping on either side of his neck. headache? Chuls said, "It is time for my bath in the health-rays. I saw you here and knew it was your time, too...." His voice trailed off. Rikud knew that something which he could not the land, and Rikud lay down and drank. It was cool and good, and when Rikud muttered to himself and undressed. The world had begun to annoy Rikud sat down and tore off a piece of a plant, munching on it. It was are variable. I don't hate you now, Rikud." was a strange thought, and Rikud's brain whirled once more down the tortuous course of half-formed questions and unsatisfactory answers. He had even wondered what it was like to get hurt. No one ever got hurt. Once, here in this same ray room, he had had the impulse to hurl himself head-first against the wall, just to see what would happen. But something soft had cushioned the impact—something which had come into being just for the moment and then abruptly passed into non-being Rikud felt at home. Rikud had been stopped in this action, although there was no real And Rikud could remember the rest of what the reading machine had said. Now in the health room, Rikud felt a warmth in the rays. Grudgingly, he Rikud looked at that foot, it was with a sense of satisfaction. True, proved the world was not perfect. Rikud was guiltily glad when he saw This was a new thought to Rikud, and he propped his head up on one "Well, where's the book?" Rikud would read it tomorrow. Rikud frowned. Chuls hadn't even seen the connection between the two The view had changed, and the strangeness of it made Rikud's pulses Yes, hurt! Rikud looked and looked until his eyes teared and he had to Presently Rikud became aware that his eyes were not tearing any longer, and he turned to look at the viewport. What he saw now was so new that he couldn't at first accept it. Instead, he blinked and rubbed his Startled, Rikud leaped back. The sullen roar in the rear of the world "Won't you eat, Rikud?" Chuls called from somewhere down below. Anger welled up inside Rikud. "All right," he said, "listen. What do the engines. "I'm hungry, Rikud." Rikud sat down hard. He blinked. For a whole week that view did not change, and Rikud had come to accept word seemed all wrong to Rikud, but he could think of no other, unless Rikud regretted that he never had had the chance to read that book on And Rikud, too, was hungry. There's nothing. It just isn't. It's only a door, Rikud." "No—" Rikud began, but the words faded off into a sharp intake of breath. Rikud had turned the knob and pushed. The door opened silently, Rikud heard a voice not unlike that of the reading machine. Rikud gave the voice up as hopeless. There were too many confusing When he opened the door a strange new noise filled his ears, a gentle humming, punctuated by a throb-throb-throb blast nearly so loudly against his eardrums. And what met Rikud's "Odd," Rikud said aloud. Then he thought, "Now there's a good word, but couldn't fathom the rapid thumping of his heart. And Rikud's mouth felt Three or four days passed before Rikud calmed himself enough to Rikud began to shout, and everyone looked at him queerly. Rikud grabbed Chuls' blouse with his big fist. Then, startled by what A buzzer sounded and automatically Rikud found himself releasing Chuls. In a moment, the room was cleared. Rikud stood alone. He cleared his This frightened Rikud, although he didn't know why. He'd like it, Rikud heard the throbbing again as he stood in the room of the would the buzzer stop? It probably would, because, as Rikud saw it, he crashing sound. He looked as the gears and cogs and wheels crumbled under his blows, shattered by the strength of his arm. Almost casually he strode about the room, but his blows were not casual. Soon his easy strides had given way to frenzied running. Rikud smashed everything in sight. When the lights winked out, he stopped. Anyway, by that time the room was a shambles of twisted, broken metal. He laughed, softly at first, but presently he was roaring, and the sound doubled and redoubled in his ears because now the throbbing had stopped. All around Rikud were darkness and hunger and thirst. The buzzer did eat or drink. Rikud himself had fumbled through the blackness and the whimpering to the dining room, his tongue dry and swollen, but the smooth belt that flowed with water and with savory dishes did not run eat. I hate Rikud, I think." hate Rikud." Then everyone was saying it. Rikud was sad. Soon he would die, because no one would go outside with "No," Rikud assured him. "It won't." gurgling sound his stomach made. A hand reached out in the darkness and grabbed at his head. He heard Crifer's voice. "I have Rikud's head." The voice was nasty, hostile. to understanding the situation than anyone except Rikud. The hand reached out again, and it struck Rikud hard across the face. "I hit him! I hit him!" Other hands reached out, and Rikud stumbled. He fell and then someone was on top of him, and he struggled. He rolled and was up again, and do to Rikud what he said he did to the machinery." Rikud ran. In the weak to rise. Rikud, too, felt a strange light-headedness and a gnawing He became sickly giddy thinking about it. But if he didn't open the door and go into the garden outside, he would die because he had no food and no water and his stomach gurgled and grumbled and hurt. And everyone was chasing him. he thought for a moment that no one would come after him. But he heard Crifer yell something, and then feet pounding in the passage. Rikud tripped over something and sprawled awkwardly across the floor. He felt a sharp hurt in his head, and when he reached up to touch it with his hands there in the darkness, his fingers came away wet. it frightened Rikud and it made his eyes smart, and he could hear those

<question>:
The first time Rikud feels pain or discomfort is when

<options>:
A the light he peered into was too bright, and his eyes hurt as a result.
B he tried to hit his head intentionally.
C he experienced hunger for the first time.
D he hits his head and bleeds for the first time.

<answer>:

A