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

<passage>:
JUPITER'S JOKE By A. L. HALEY Casey Ritter, the guy who never turned down a dare, breathed a prayer to the gods of idiots and spacemen, and headed in toward the great red spot of terrible Jupiter. also, I had promised not to rat on him before taking the job. Well, Casey Ritter may be a lot of things we won't mention, but he fall and the head man intone the sentence that would take me out of circulation for a long, long time. And instead, blast me, if they didn't foul me with this trip to good old Jupiter. I didn't get it at first. I'd argued with 'em, but inside I'd been all set for the sentence, and even sort of reconciled to it. I could even hear the words in my mind. But they didn't match what the judge was saying. I stood there gaping like a beached fish while I sorted it out. Then I croaked, "Jupiter! What for? Are you running outa space in stir? Want to choke me to death in chlorine instead?" Being civil to the dried-up straw, joined his fingertips carefully, cleared his scrawny throat, and told me what for. "You've no doubt heard tales of the strange population of Jupiter," he said. "Every spaceman has, I am sure. Insect-like creatures who manifestly migrated there from some other system and who inhabit the Red Spot of the planet, floating in some kind of artificial and in some way worm from them the secret of their anti-gravity field, substantial monetary reward. Your talents, Mr. Ritter, seem, shall we I squeezed out more when I saw those pictures, though. Those inhabitants were charming, just charming if you like scorpions. Well, a cross between a scorpion and a grasshopper, to be accurate. Floating collapsed onto my chair. A crafty-eyed buzzard across the table leaned toward me. "So this is the great Casey Ritter, daredevil of the Solar System!" he sneered. "Never loses a bet, never turns down a dare!" I shuddered. "You're telling that one! And besides, a man's got to draw They were really stumped. They hadn't expected me to take this attitude at all. No doubt they had it figured that I'd gratefully throw myself into a sea of ammonia among man-size scorpions just for the hell of it. Nuts! After all, in the pen a man can eat and breathe, and a guard won't reach in and nip off an arm or leg while he's got his back turned me into an honest trader. Me, Casey Ritter, slickest slicker in "Oh, no!" I moaned. "What were you trying to do, start a feud between us and Mars?" and sell 'em to Akroida. She's nuts about jools. What that old girl won't give me fer 'em—" He whistled appreciatively, thinking about it. "Jupiter!" I goggled at him. "Akroida! Who's she?" He looked at me as if I hadn't yet got out from under the rock where he was sure I'd been born. "Don't you know nothin', butterhead?" again. The memory still makes me fry. "Akroida," he explained in his own sweet time, "is the queen-scorp of them idiotic scorpions that lives on Jupiter. I sold her the Halcyon Diamond that disappeared from the World Museum five years ago, remember?" He winked broadly. "It come from Mars in the first place, about the rocks on Mars but I jerked him back. "You mean those scorpions have really got brains?" "Brains!" he snorted. "Have they got brains! Why, they're smarter than cheese trap, though, I figger she'll be all cooled off and ready fer them emeralds." nails, I bit myself. So I faced it. Casey Ritter lost his nerve, and along with it, the chance of a lifetime. A better man than me had already penetrated the Great Red Spot of old Jupiter and come out alive. That thought ate me to the quick, and I began to wonder if it was too late, after all. I could hardly wait for morning to come, so that I could pry more information out of Pard Hoskins. letter to the S.S.C. The Big Sneer of the conference table promptly dropped in on me, friendly as a bottle of strychnine. But for a lad headed for Jupiter that was good training, so I sneered right back at him, explained the and the caper set up. There were a few bits of info that Pard had to shell out, like where the emeralds were, and how to communicate with those scorpions, and how he'd made Akroida mad. that took me in was colorblind, so I didn't have no warning at all. I found out that them scorpions can't stand yeller. It just plain drives them nuts! Thought they'd chaw me up and spit me out into the He ruminated a few minutes. "Tell you what, chump. Make them shell out with a green an' poiple spacesuit—them's the real Jupiter colors—an' slipped down onto the Red Desert of Mars and picked up the Killicut Emeralds from where Pard Hoskins had cached them and safe out in space Ritter, compared with the value of the secret you are to buy with He paused, his long nose twitching cynically—"IF you succeed, your Jupiter's farthest moon then they took me in to the edge of Jupiter's ice-cloud and turned me loose in a peanut of a space boat with old Jupe looming ahead bigger than all outdoors and the Red Spot dead ahead. I That famous Red Spot was that big, too. It kept expanding until the red, because it wasn't long until I spotted a purple and green hopper-scorp traveling straight toward me, sort of rowing along with He lolled his hideous cranium practically on my shoulder. "Anything! Just anything you desire, my dearest friend." I tried to back off from him a bit, but the ship stopped me. "I'm Casey Ritter. What's your label, chum?" natural lump on his back, and he darted away from me. I opened the throttle and tore after him among the immense red blobs that were now beginning to be patterned with dozens of green-and-purple scorpions, all busy filling huge baskets with buds and tendrils, no doubt. Other scorpions oared and floated about in twos and threes in a free and peaceable manner that almost made me forget that I was scared to what about Casey Ritter, who hadn't cultivated even a feather? Attaboy, however, had the answers for everything. Towing me from the glowed like the inside of a red light. No wonder those scorpions like green and purple. What a relief from all name?" she demanded. And when he told her, with a bad stutter in his code, she reared up higher on her skinny elbow and glared in my direction. "Casey Ritter? Never heard of him. Where's he from?" Well, after all, she wasn't blind. He had to confess. "I—uh—the

<question>:
What convinces Casey Ritter to help the government by throwing himself into Jupiter’s Great Red Spot?

<options>:
A Pard Hoskins tells him that Jupiter’s scorpion race is rich with emeralds, which makes Casey realize how easy it would be to caper the emeralds and collect the compensation the S.S. Court’s offered him for completing the mission.
B Pats Hoskins tells him that Jupiter’s scorpion race isn’t as harmful as previously thought, which makes Casey realize how easy it would be to earn the compensation the S.S. Court’s offered him if he completed the mission.
C Casey wants to earn back his honor as a dare devil by successfully tricking Jupiter’s scorpion race into selling him emeralds.
D Casey wants to learn more about Jupiter’s scorpion race.

<answer>:

B