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

<passage>:
books. But cook? Sorry." "Well, one of us had better learn, and I'll have other things to do." Koslow Spaceways, glowered back at him. Its reddish tinge brightened , he promised himself, I'll explain how I cut the fuel flow and see if she's detective enough to suspect that we're just orbiting Ganymede! here and there on the cargoes never shows by the time figures get back to Earth. The big jets in the home office don't care. They count it on the estimates." "You asked any of them lately?" Tolliver prodded. me ," he complained. "You know I took this piloting job just to scrape up money for an advanced engineering degree back on Earth. I only want to finish my year—not get into something I can't quit." whenever your contract's up. Think we'd bend a good orbit on your account?" that way, either you get in line with us or you're through right now!" "You can't fire me," retorted the pilot pityingly. "I came out here on a contract. Five hundred credits a week base pay, five hundred for hazardous duty. How else can you get pilots out to Jupiter?" "Okay I can't fire you legally—as long as you report for work," your quarters and see if the company calls that hazardous duty!" "Doesn't matter," answered Tolliver, grinning amiably. "The hazardous part is just being on the same moon as you for the next six months." He winked and walked out, deliberately leaving the door open behind him so as to enjoy the incoherent bellowing that followed him. Looks like a little vacation , he thought, unperturbed. He'll come around. I just want to get back to Earth with a clean rep. Let Jeffers by the arbitrary calender constructed to match Ganymede's week-long journey around Jupiter. His contract guaranteed a pilot's rating, but someone had neglected to specify the type of craft to be piloted. spaceport, or for hauling cross-country to one of the mining domes. He soon found that there was nothing for him to do but hang around the garage in case a spaceship should land. The few runs to other domes seemed to be assigned to drivers with larger vehicles. The following day was just as boring, and the next more so. He swore handing out soft jobs to nephews, I mean." "Aah, these young punks just come out for a few months so they can go back to Earth making noises like spacemen. Sometimes there's no reason but them for sending a ship back with a crew instead of in an economy orbit. Wait till you see the baggage you'll have to load!" Later in the day-period, Tolliver recalled this warning. Under a apparently won from one of the pilots. She wore gray slacks and a heavy sweater, like a spacer. "Sorry to keep you waiting," she said, sliding into the seat beside Tolliver. "By the way, just call me Betty." or does he just know where bodies are buried? "They were making dates," said the girl. "Were they ribbing me, or is it true that none of the four of them goes back with the ship?" "It's true enough," Tolliver assured her. "We need people out here, and it costs a lot to make the trip. They found they could send back loaded ships by 'automatic' flight—that is, a long, slow, economical orbit and automatic signalling equipment. Then they're boarded approaching Earth's orbit and landed by pilots who don't have to waste their time making the entire trip." He followed the signals of a spacesuited member of the port staff and the business management of a local branch. They probably won't let me see much else." "You never can tell," said the pilot, yielding to temptation. "Any is trying too hard to sound like one of the gang. "Yeah," he went on, "right now, I don't do a thing but drive missions from the city to the spaceport." "Missions! You call driving a mile or so a mission ?" "Don't sneer at Ganymede, honey!" he warned portentously. "Many a "You can call me Betty. What happened to him?" "Oh, they told me there was nothing alive on Ganymede!" "I was thinking of the mountain slides," said the pilot. "Not to mention volcanic puffballs that pop out through the frozen crust where you'd least expect. That's why I draw such high pay for driving an paycheck he had received that morning. It did not, naturally, indicate he was drawing the salary of a space pilot. Betty looked thoughtful. "I'm retiring in six months if I'm still alive," he said bravely, edging the tractor into the airlock at their destination. "Made my that Tolliver guide her to the office of the manager. She trailed along as if with a burden of worry upon her mind, and the pilot's conscience prickled. "Jeffers," he announced, "this is ... just call her Betty." "Miss Koslow!" he beamed, like a politician the day before the voting. "It certainly is an honor to have you on Ganymede with us! That's all, "Wh-wh-what do you mean, Miss Koslow?" Jeffers stammered. he told me to find out what was wrong with operations on Ganymede. Betty, and Tolliver thought he muttered something about "just landed." seemed to blame you for it." "Sure!" grumbled the pilot. "He thinks I told you he was grafting or smuggling, or whatever he has going for him here. That's why I want to get out of here—before I find myself involved in some kind of fatal "What do you think you're up to?" asked Betty with some concern. "Where are you going?" asked Betty. dusty, moist air puffing out into the near-vacuum of Ganymede's "Takeoff!" shrilled Betty. "What do you think you're going to do? I just want to use the radio or TV!" dials!" He ran a practiced eye over the board, reading the condition of the ship. It pleased him. Everything was ready for a takeoff into an economy orbit for Earth. He busied himself making a few adjustments, doing his best to ignore the protests from his partner in crime. He warned her the trip might be long. When Betty produced a memo giving frequency and call sign, he set about could arrange for a cruiser to escort his daughter to Ganymede and When he heard Betty requesting assistance in arresting Jeffers and For one thing, though the officer seemed well acquainted with Betty, he never addressed her by the name of Koslow. For another, he accepted the request as if he had been hanging in orbit merely until learning who to go down after. They really sent her out to nail someone "We do have one trouble," he heard Betty saying. "This tractor driver, Tolliver, saved my neck by making the ship take off somehow, but he says it's set for a six-month orbit, or economy flight. Whatever they call it. I don't think he has any idea where we're headed." Tolliver pulled her back, holding her in mid-air by the slack of her sweater. "Actually, I have a fine idea," he informed the officer coldly. "I happen to be a qualified space pilot. Everything here is under control. If Miss Koslow thinks you should arrest Jeffers, you can call us later "Miss Koslow?" repeated the spacer. "Did she tell you—well, no matter! "This 'Miss Koslow' business," he said suspiciously. "He sounded funny send his own little girl way out here to Ganymede to look for whoever "Sure. The name's Betty Hanlon. I work for a private investigating firm. If old Koslow had a son to impersonate—" ! Can't they get us back? How can you tell where we're going?" "I know enough to check takeoff time. It was practically due anyhow, so we'll float into the vicinity of Earth at about the right time to be picked up." He went on to explain something of the tremendous cost in fuel

<question>:
Why did “Betty Koslow” really come to Ganymede?

<options>:
A To investigate possible criminal behavior.
B To learn about business management.
C To arrest Jeffers.
D To take a vacation and date pilots.

<answer>:

A