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

<passage>:
Gavir gingerly fitted the round opening in the bottom of the silvery brings you the first native Martian to appear on the dreamwaves—Gavir of Earthmen. Malcomb told how he had been struck by Gavir's intelligence and missionary-taught ability to speak Earth's language, and had decided to bring Gavir to Earth. The moderator turned to Gavir. "Are you anxious to get back to Mars?" Gavir thought. Back behind the Preserve Barrier that killed you instantly if you stepped too close to it? Back to the constant fear of being seized by MDC guards for a labor pool, to wind up in the MDC mines? Mars was where Gavir's father had been pinned, bayonets through his Barrier, to die slowly, out of Gavir's reach. Father James told Gavir father had tried to organize resistance to the Corporation. Mars was Martian tribes would always protect the head of MDC from Gavir's back to Mars! I want to stay here! Gavir said, "I will sing the sound, as Gavir heard it in his mind. Everything that Gavir saw and heard and felt in his mind, the dreamees orange sand, the hunter sought traces of the seegee, the great slow than the hunter. The thin Martian air carried weirdly high-pitched the drock, for it showed that the Desert Man and not the drock, was Gavir sat down on the divan, exhausted, his song finished. He didn't program was upon him. He began shouting even before Gavir removed his headset. "What kind of a fool are you? Before you started that song, you dreamed things about the Martian Development Corporation that were libelous! I got the whole thing—the Barrier, the guards, the labor pools and mines, At this a sudden change came over the producer. The standard Earth apologize for having spoken sharply, but dreamcasting is a nerve-wracking business. If it weren't for Ethical Conditioning, I As they left the Global Dreamcasting System building, Gavir said to As soon as Gavir was sure that Malcomb was out of the hotel and well In a pitifully few days he would be back in the Preserve, back with Earthmen. Despite Malcomb's orders, he was going to find a seller of books. civilization is explained in books." Gavir wanted to learn. It was his A river of force carried him, along with thousands of Earthmen—godlike beings in their perfect health and their impregnable stopped and stared. Gavir stared back. Earthmen turned to one another. "A Martian." "Let's give pain and death to the Martian! It will be a new experience—one to savor." "Take pain, Martian!" lash fell on Gavir. He felt a savage sting in the arm he had thrown up Gavir leaped at the Earthmen. He clubbed the man with the whip across the face. As the others rushed in, Gavir flailed about him with long He began to enjoy it. It was rare that a Martian had an opportunity to at once turned and ran. Gavir drew back his arm and threw the knife gravity of Earth. The Earthmen disappeared into a lift-force field. Gavir decided not to Malcomb woke him at 1100. Gavir told Malcomb about the here on Earth. A variation of it was given you to acclimate you to Earth's gravity and atmosphere. Well, since the R&amp "Why not punish them?" said Gavir. careers and acquired a good deal of property and position. And there are getting to be more of them all the time. But come on. You and I have to go over to Global Dreamcasting and collect our fee." The impeccably affable producer of Dreaming Through the Universe vice-president in charge of production. Scion of one of Earth's oldest They went with the producer to the upper reaches of the Global space-port. He was youthful in appearance, as were all Earthmen, but a Gavir stiffened. They "If you let that boy go back to Mars I'll never dream a Global program "Keep him on Earth." Gavir trembled with joy. Hoppy Davery pressed another button and a She looked at Gavir. "Mmm. What a body, what gorgeous blue skin. How Problem." She walked to the door and Gavir watched her all the way. professional name—Blue Boy. Gavir doesn't Gavir thought. "Perhaps you would like the Song of Creation ." "It's part of a fertility rite," Malcomb explained. "Great! Give the Senile Delinquents another workout. It's not quite ethical, but its good for us. But for heaven's sake, Blue Boy, keep The following week, Gavir sang the and throwing mass orgies ever since you sang. But they take time out to call us up and beg for more. I've got a sponsor and a two-year contract lined up for you." Malcomb and Gavir arrived. Hoppy introduced him proudly. "Mr. Jarvis Spurling, president of the Martian Development Corporation." Gavir's hand leaped at the narvoon under his doublet. Jarvis Spurling ignored Gavir's hand and stared coldly at him. There I'll pay you because a Bluie on Dreamvision is good publicity for MDC products. But one slip like on your first 'cast and you go back to the Preserve." Caution told Gavir to refuse. But before he could speak Spurling snapped, "Disgusting! An Earth woman and a Bluie! If you were on Mars, Sylvie blew a cloud of smoke at Spurling. "You're not on Mars, Jack. concentration camp you run on Mars. Coming, Gavir?" Gavir grinned at Spurling. "The contract, I believe, does not cover my private life." Sylvie uttered a short, sharp obscenity, linked arms with Gavir, and Lucifer Grotto was in that same quarter in which Gavir had been Century-Plussers. Gavir told her about the attack, and she laughed. "He seemed happy to get away from me," said Gavir. and smiled at Gavir. Gavir contemplated her. That she was over a hundred years old was a not like a Martian woman, but he found the differences exciting and In the months that followed, Gavir's fame spread over Earth. By Davery doubled Gavir's salary. Gavir toured the world with Sylvie, mobbed everywhere by worshipful distance in crowds around Gavir, now wore a wide-brimmed hat of Then there came the dreamcast on which Gavir sang the the song Gavir pictured a tribal chief who refused to make fair bundles of money from a starving Gavir. Then he ended the song. Hoppy sent for him next morning. Gavir spread his big blue hands. "I am sorry. I don't want more money. On his next dreamcast Gavir sang the The Desert Man ran over the red sand, and he found the drock. He did of Jarvis Spurling. Gavir held the image in his mind for a long When the dreamcast was over, a studio page ran up to Gavir. "Mr. "Let him come and find me," said Gavir. "Let us go, Sylvie." They went to Lucifer Grotto, where Gavir's wealthiest admirers among An hour passed from the time of Gavir's arrival. your salary and keep you here on Earth, and this is what I get for it. All right. A Bluie is a Bluie, and I'll treat you like a Bluie should pistol out and pointed it at Gavir. Gavir stood up. His right hand plucked at his doublet. Mars, Bluie, and you're out hunting a drock. And you find one, only Gavir took out the narvoon, grasped the blade, and drew his arm back. "Gavir!" down your enemy, Gavir!" Still holding the narvoon, Gavir stood over his dead enemy. He threw

<question>:
Why was Gavir brought to Earth from Mars?

<options>:
A As punishment for dissenting against the MDC
B Because he was the first Martian that humans had encountered
C To perform in a dreamwave performance
D As part of a labor pool

<answer>:

C