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

<passage>:
MUCK MAN [Transcriber's Note: This etext was produced from criminal. There was, perhaps, a crease of puzzlement in her brow, as if she had thought crimes were committed by shriveled, rat-faced types, and not by young biological engineers who still affected crewcuts. Tom Dorr, Hazeltyne's general manager, was her escort. Asa felt certain, without proof, that Dorr was the man who had framed him for the charge of grand theft by secreting a fresh Slider egg in his behind bars. "Five or one." "Take the five," Jumpy advised. "Learn basket-weaving in a nice air-conditioned rehab clinic. A year on a changeling deal will seem a lot longer, even if you're lucky enough to live through it." "Nope," Asa said softly. "I'm going into a conversion tank. I'm going to be a muck man, Jumpy. I'm going out to Jordan's Planet and hunt Slider eggs." "Smuggling? It won't work." Asa didn't answer. The Hazeltyne company had gone after him because he had been working on a method of keeping Slider eggs alive. The Hazeltyne company would be happy to see him mark time for five years of so-called social reorientation. But if he could get out to Jordan's Planet, with his physiology adapted to the environment of that wretched world, he could study the eggs under conditions no laboratory could duplicate. He might even be able to cause trouble for Hazeltyne. His only problem would be staying alive for a year. An interview with a doctor from the Conversion Corps was required of altered shape before they signed a release. The requirement held two hundredth year his body lost the ability to be coaxed into growing new cells. A fifth set of teeth was usually one's last. As long as senescence could be staved off, however, any man could have bulging biceps and a pencil waist, if he could pay for the treatment. Until the medical associations declared such treatments unethical there techniques were perfected to adapt humans to the dozen barely habitable worlds man had discovered. Even on Mars, the only planet outside Earth in the solar system where the human anatomy was remotely suitable, a man could work more efficiently with redesigned lungs and temperature controls than he could inside a pressure suit. On more bizarre planets Unfortunately for planetary development companies, hardly anyone wanted to become a changeling. High pay lured few. So a law was passed permitting a convicted criminal to earn his freedom by putting in one year as a changeling for every five years he would otherwise have had to spend in rehabilitation. "What types of changelings do you have orders for right now, doctor?" asked for Jordan's Planet without some preliminary questions. have to Earth, there's Caesar's Moon, where we'd just have to double gorilla than the natives. Last, of course, there's always a need for muck men on Jordan's Planet." The doctor shrugged, as if naturally no one could be expected to choose Jordan's Planet. Asa frowned in apparent consideration of the Neumann Two. Twenty-five on Jordan's." "Why such a difference? Everyone knows about muck men living in the "Still," Asa mused aloud, "it would mean a nice bankroll waiting at the Since it was cheaper to transport a normal human than to rig special to bring meals and take out dirty dishes. He was still a prisoner. spaceships nor worked in the dome settlements on harsher worlds, he cellmate, another convict who had elected conversion to muck man. More important, his companion had done time on Jordan's Planet before and "It's the Slider eggs," explained Kershaw, the two-time loser. "The ones you see on Earth knock your eyes out, but they've already begun to die. There's nothing like a fresh one. And I'm not the first to go crazy over them. When I was reconverted and got home I had nine thousand dollars waiting for me. That'll buy a two-year-old egg that question its workings. For a few expectant moments there would be only fading value made the eggs a luxury item like nothing the world had ever seen. If Asa had found a means of keeping them alive it would have made him wealthy at the expense of the Hazeltyne monopoly. Asa Graybar kept his normal form on Jordan's Planet just long enough to to back out of becoming a changeling, that he was on his way to the Everyone had seen pictures of muck men. It was different having one where they had been left to revive from conversion. They went into a courtyard partly covered by a roof projecting from the Hazeltyne company's dome settlement. The far half of the courtyard was open to the gray drizzle that fell almost ceaselessly from the sky of Jordan's Planet and turned most of its surface into marsh and mud along the wall were thirty stalls for muck men. From fifty yards across the courtyard a muck man bounded over to them "Do what he says," Kershaw whispered to Graybar. "He's sort of a trusty "Everything that grows on this planet is poison. So if you got any lifted his head to breathe deeply and saw two humans watching him from Gazing at him with repugnance, after witnessing the end of his session with Furston, were Harriet Hazeltyne and general manager Tom Dorr. the dozen other muck men operating from the dome, Asa asked what the "The girl will inherit this racket some day, won't she?" asked one of Graybar aside. "In case you don't like it here," Furston said, "you can get a week knocked off your sentence for every egg you bring in. Now get out there and work that muck." Hazeltyne station, swimming easily across ponds too broad to jump. The mud, if not precisely as pleasant to the touch as chinchilla fur, was not at all uncomfortable, and the dripping air caressed their skins "We've got an egg but a Slider wants it back." the Slider's first rush, for he was trying to hop on one leg as if the "Thanks," Kershaw said. "Muck men stick together. You'll make a good "Last time I was here there was about one mucker killed for every six eggs brought out. Of course you're not supposed to stand there admiring the eggs like I did while a Slider comes up on you." "Just in case there are any more Sliders around," he explained. Tom Dorr and Harriet Hazeltyne. The company manager swung the door open and leaned out. "I see you took care of the Slider," he said. "Hand over the egg." Kershaw, as a muck man, would have weighed close to three hundred "You do what I tell you, mucker," said Dorr. "Nope. I want to make sure you come back." Asa turned his head to Harriet. "You see, Miss Hazeltyne, I don't trust your friend. You might ask him to tell you about it." Dorr stared at him with narrowed eyes. Suddenly he smiled in a way that egg by himself. He could leave the egg here, of course. Even so he which he and Kershaw had certainly deviated on their outward trip. way. The workers were supposed to home in on radio signals, if they What was the night like on Jordan's Planet? Maybe Sliders slept at this strange new body, and if the Sliders left him alone.... it would make. "Anyway," Harriet said, "I told him he couldn't just leave you here to Jordan's Planet on a fancy tour. I told him the real reason I was "Oh, back on Earth I can make a helicopter do stunts. But I wasn't used while she stared at him patiently. "What happened to the other muck men

<question>:
Why would a company think it is a logical idea to let prisoners work as muck men on Jordan's Planet?

<options>:
A Prisoners are more efficient workers than people who are not in prison.
B It is a very dangerous job that only prisoners would be desperate enough to do to lower their prison sentence.
C It is an appropriate punishment that will balance out the crimes committed by prisoners.
D The Hazeltyne company can only afford to employ prisoners.

<answer>:

B