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

<passage>:
It made sense. Interstellar was new and they wanted him on the ship planetary system far afield, a closeup view of the universe, history in Interstellar Chief Rexroad knocked the dottle from his pipe in a tray, "Crewmen," Rexroad said, "make poor reporters." The crew's report of suffering and chaos during the year's outgoing voyage was twisted, distorted and fragmentary. Ellason remembered it well. The decision of Interstellar was that the colonists started a revolution far out in space, that it was fanned by the ignorance of Captain the problem of small groups in space—witness the discovery of the halfway point. It ended with passengers engaging in open warfare Ellason nodded. "The ship disappeared." "Yes. We gave control to the colonists." "Assuming no accident in space," Phipps said, "it was a wrong decision. They probably took over the ship." "And now," Ellason said, "you're going to try again." Interplanetary. Harvey Branson. No doubt you've heard of him. He's unprejudiced view. That's where you come in. You do the observing, the reporting. We'll evaluate it on your return." "If I return," said Ellason. "I suppose that's problematical," Phipps said, "but I think you will. The , at a tremendous cost. Basically, it was an instrument which would open distant vistas to colonization, reducing the shoulder-to-shoulder pressure of a crowded solar system. A gigantic, Antheon as it circled Earth, shuttling its cargo and passengers to the promised land, the new frontier. A space-borne metropolis, it would to introduce Keith Ellason, whose presence Interstellar has impressed Ellason thought it was a good staff. Branson detained him after the others had gone. "One thing, Mr. Ellason. To make it easier for you, I suggest you think of this journey strictly from the observer viewpoint. There will be no story for Transworld at the end." Ellason was startled. While he had considered the possibility, he had not dwelt on it. Now it loomed large in his mind. "I don't understand, Captain Branson. It seems to me—" Ellason left the captain's quarters with an odd taste in his mouth. Now why had Branson said that? Why hadn't Rexroad or Phipps said something, if it was important? are humanity adrift, rudderless, for whom the stars are no longer The theft of Carver Janssen's attache case occurred on the thirty-first day out. In Ellason's mind the incident, though insignificant from the standpoint of the ship as a whole, could very well be the cause of stability tests too. This, then, was what happened when you took three thousand strangers and stuck them in a can for a year. When Ellason saw Branson about it, the captain said, "Of course I realize it takes only a little thing like this to set things off. I know people get tired of seeing each other, playing the same tapes, "What would he want seeds for? Have you thought of that?" "Of course. They'd have real value on Antheon." Ellason sought out Carver Janssen. He was a middle-aged man with a tired face and sad eyes. He said, "Now what am I going to Antheon for? I could only take along so much baggage and I threw out some Interstellar asked me to go along. But what use am I now? Where am return in the interests of the Antheon colony and of humanity. Dievers shrugged. "This is a spaceship. How would I know whether a red Although Dievers' account appeared in the newsletter, it was largely discounted. "If it is true," Branson told Ellason, "the theft must be the work of a psychotic. But I don't believe Jamieson Dievers. It may well be he's in the newsletter, it lost no time in penetrating every compartment of the ship. Ellason was present when a delegation from the Third Quadrant called on Captain Branson, demanding action. Branson remained seated behind his desk, unperturbed, saying, "I have "I sympathize," Branson said, "but it is up to each quadrant to deal with its problems, whatever they may be. My job is to get us to Antheon." The group left in a surly mood. "You wonder at my reluctance, Mr. Ellason," Captain Branson said. "But suppose I assign the crew to patrol duties, the culprit isn't caught, and further incidents occur. What then? It soon becomes the crew's the crew's doing in the first place." "Yes," Ellason said, "but what if the intruder is a crewman?" "I know my men," Branson said flatly. "You could have a shake-down for the mask and the seed case." "Do you think it is a member of the crew?" Branson's eyes were bright. "No, I trust my men. I won't violate that trust." Ellason left, feeling uneasy. If he were Branson, he'd initiate an investigation, if nothing else than to prove the crew guiltless. Why couldn't Branson see the wisdom of setting an example for the colonists? the theft of the belt. Captain Branson did not wait for the newsletter. Through the ship's "Insofar as the ship is concerned, it is my duty to make certain no the landing on Antheon. put occupants to sleep as he went, taking many articles of value and leaving disorder behind. Ellason interviewed as many victims as he could, noted it all in Ellason was busy noting it all in his book. It became filled with jottings about innocent people being accidentally stunned when people who saw Red Mask here, saw him there. Hardly a day went by without some new development. "Oh, yes, Mr. Ellason, we're going to get him," said Tilbury, now chief of police, cracking his knuckles, his eyes glowing at the thought. "We're bound to get him. We've got things worked out to the finest "Without a trial?" "Oh, there'll be a trial, Mr. Ellason, but you don't think any jury'd him. Ellason's first thought was that he must be a stowaway, but then he remembered the face, and Captain Branson, who came to have a look at him, unhappily admitted the man was a member of the crew. His name was which it always is. The Weblor II was only one day out of orbit when Captain Branson sent for Ellason and introduced him to the executed man. "Hello," Critten said, grinning from ear to ear. "I figured as much," Ellason said. "I've been doing a lot of thinking." "You're perhaps a little too good as an observer," Branson said. "Or for this job, Gelthorpe Nill. Nill used to be in counter-espionage when there were wars." "You were excellent," Ellason said. "Let me get this straight. Interstellar thought that it was idleness the passengers." "To say nothing of me," Critten said. "And you, Mr. Ellason, were along to observe it all," Captain Branson put in. "Interstellar wanted an accurate picture of this. If it worked, they told me they'd use it on other trips to Antheon." Ellason nodded. "No time for brooding, for differences of opinion on Captain Branson told them to do that." "And the murder?" rob her when she woke up." Branson cleared his throat. "Ah, Ellason about that story. You understand you can't write it, don't you?" Ellason said regretfully that he did understand. "The colonists will never know the truth," Branson went on. "There will ply our trade, our little tragedies, on a thousand ships bringing

<question>:
Which is true about the role of Interstellar in this story?

<options>:
A They hire Ellason so that memories of the journey can be documented for the families who are traveling
B They hire the Red Mask so that they can make back some of the costs of running the mission
C They hire the Red Mask as well as a reporter to make it look like they have nothing to hide
D They are the company who hired Ellason in order to get to the bottom of why the missions are going awry

<answer>:

C