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

<passage>:
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 Jumpy, Asa's cellmate, took one look at his face as he was put back Asa glared at him. Asa didn't answer. The Hazeltyne company had gone after him because whether or not the individual, like Asa, was already experienced. to spend in rehabilitation. "What types of changelings do you have orders for right now, doctor?" Asa asked the man assigned to his case. It would look suspicious if he Asa raised his eyebrows. "Why such a difference? Everyone knows about muck men living in the mud while they hunt Slider eggs. But don't your conversions make the Since it was cheaper to transport a normal human than to rig special environments in a spaceship, every planet operated its own conversion chambers. On the space freighter that carried him from Earth Asa Nevertheless his time was not wasted. He had as a companion, or "I've been meaning to ask you," Asa said. "How do you handle the Sliders?" Kershaw grinned. Asa Graybar kept his normal form on Jordan's Planet just long enough to learn the discomfort of double gravity. He was told he needed another It was not Kershaw's voice, but it had to be Kershaw. Asa opened his eyes. Everyone had seen pictures of muck men. It was different having one stand beside you. Kershaw looked much like an enormous frog except that his head was still mostly human. He was sitting on webbed feet, his "Come to daddy, babykins," Kershaw said, holding out his hands. "Only try hopping this time. And take it easy." Asa pushed himself upright with one arm and tried a small hop. Nerve "That's the way," Kershaw said approvingly. "Now get this on and we'll go outside." Asa snapped on a belt and breech cloth combination that had flaps of fabric dangling from the belt in front and behind. He followed as "Names?" he growled. He was a foot taller than Graybar and big everywhere in proportion. "Kershaw. I'm back, Furston." "I'm Graybar." "Kershaw again? Just start in where you left off, sucker. Come on, you." He pointed to Asa and leaped to the open portion of the courtyard. "Do what he says," Kershaw whispered to Graybar. "He's sort of a trusty and warden and parole officer rolled into one." Asa was put through a series of exercises to get him used to his distorted body, to teach him how to leap and how to dig. He was shown how to operate the radio he would carry and how to fire the pencil-slim Furston laughed. ideas of hiding out till your term is up, forget 'em. Right here is where you eat." Asa turned without a word and hopped feebly away from Furston. He lifted his head to breathe deeply and saw two humans watching him from an observation tower on the roof. Gazing at him with repugnance, after witnessing the end of his session with Furston, were Harriet Hazeltyne and general manager Tom Dorr. The girl's presence merely puzzled Asa, but Dorr's being here worried him. Dorr had tried to get rid of him once and was now in an excellent position to make the riddance permanent. At supper that night, squatting on the ground beside a low table with the dozen other muck men operating from the dome, Asa asked what the two were doing out here. "The girl will inherit this racket some day, won't she?" asked one of III Next morning Furston passed out guns, knives, radios, and pouches to carry any eggs the muck men found. He gave each man a compass and assigned the sectors to be worked during the day. Finally he called knocked off your sentence for every egg you bring in. Now get out there and work that muck." Furston sent Graybar and Kershaw out together so that the veteran could show Asa the ropes. Asa had already learned that the wall around the courtyard was to keep Sliders out, not muck men in. He leaped over it and hopped along after Kershaw. worked, Asa kept thinking what an inefficient system it was. Everything about the operation was wrong. "Got it!" Kershaw shouted. He leaped out of the pit and started wiping slime off a round object the size of a baseball. Asa jumped out to watch. Asa leaped with all his strength, sailing far out of the clearing. "On the way." Asa hopped back to the clearing. Kershaw must have been bowled over by the Slider's first rush, for he was trying to hop on one leg as if the Asa. He leaped to one side, firing from the air and missing, and saw Even as he was knocked aside into the muck, Asa's body was showered with shreds of alien flesh scattered by the rocket's explosion. shiver and lie still. Asa took a deep breath and looked around. "Kershaw!" he called. "Where are you?" "Over here." Kershaw stood briefly above the weeds and fell back again. Asa leaped over to him. "Thanks," Kershaw said. "Muck men stick together. You'll make a good one. I wouldn't have had a chance. My leg's busted." "The helicopter ought to be here pretty soon," Asa said. He looked over settled down on broad skids. Through the transparent nose Asa could see and leaned out. "I see you took care of the Slider," he said. "Hand over the egg." "Kershaw has a broken leg," Asa said. "I'll help him in and then I'll get the egg." While Kershaw grabbed the door frame to help pull himself into the helicopter, Asa got under his companion's belly and lifted him by the waist. He hadn't realized before just how strong his new body was. Kershaw, as a muck man, would have weighed close to three hundred pounds on Earth, close to six hundred here. Dorr made no move to help, but the girl reached under Kershaw's shoulder and strained to get him in. Once he was inside, Asa saw, the Asa didn't hesitate. "The egg stays with me," he said softly. "You do what I tell you, mucker," said Dorr. "Nope. I want to make sure you come back." Asa turned his head to worried Asa. A round trip for the helicopter should have taken no more than twenty minutes, allowing time for Kershaw to be taken out at the settlement. After an hour passed Asa began to worry. He was sure Dorr would return for the egg. Finally he realized that Dorr could locate the egg which he and Kershaw had certainly deviated on their outward trip. A whirring noise made Asa jump in alarm. back alone to dispose of him without any witnesses? Asa leaped for the hover, thumped down upon the mud and slid forward. As Asa jumped aside, Asa leaped forward in consternation. Not only was his chance of safe passage back to the settlement wrecked, but now he would have the "They feed at night, you know. And they eat their own kind," she said. "The Slider you killed would draw them like ants to jam." Asa glanced around quickly to make sure no Sliders had already come. He

<question>:
What were the consequences of Asa meeting Kershaw and Furston?

<options>:
A Furston saved Kershaw and Asa's life after running into the Slider.
B Kershaw and Furston taught Asa how to deal with Dorr and his devious tactics.
C Kershaw and Furston discouraged Asa's hopes of being a successful muck man.
D Kershaw and Furston were essential in helping Asa assimilate to his job as a muck man.

<answer>:

D