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

<passage>:
"The Stortulian will be duly punished," replied the leader of the Stebbins. "Get the Terran Consulate on the phone, Stebbins. Have them Getting specimens for the interstellar zoo was no problem—they battled for the honor—but send down a legal adviser. Find out if there's any way we can get out keep a display from making a monkey of me! It was our first day of recruiting on the planet, and the alien life-forms had lined up for hundreds of feet back from my rented and smell them with ease. My three staff men, Auchinleck, Stebbins and Ludlow, walked shieldwise in front of me. I peered between them to size the crop up. The aliens them eager for a Corrigan contract. The Galaxy is full of bizarre beings, but there's barely a species anywhere that can resist the old exhibitionist urge. sign plastered to a facing wall: WANTED—EXTRATERRESTRIALS! We had saturated MacTavish IV with our promotional poop for a month preceding arrival. Stuff like this: Want to visit Earth—see the Galaxy's most glittering and exclusive world? Want to draw good pay, work short hours, experience the thrills of show business on romantic Terra? If you are a non-terrestrial, there may be a place for you in the Corrigan Institute of Morphological Science. No freaks wanted—normal beings only. J. F. packs in the crowds back on Earth. Why not? It's the best of its kind, the only really decent place where Earthmen can get a gander at the other species of the universe. "I'll be placed on exhibition at your Institute on Earth. You'll pay for my services, transportation and expenses. I'll be required to remain on exhibit no more than one-third of each Terran sidereal day." on one side, two on the other. "Wonderful! I will see Earth at last! I accept the terms!" I buzzed for Ludlow and gave him the fast signal that meant we were I grinned, pleased with myself. We needed a green Regulan in our show the last one had quit four years ago. But just because we needed him didn't mean we had to be extravagant in hiring him. A Terraphile alien who goes to the extent of rechristening himself with a Terran monicker would work for nothing, or even pay us, just so long as we let him get to Earth. My conscience won't let me really exploit the successful proprietor of Corrigan's Institute, after some years as an impoverished carnival man in the Betelgeuse system. Back in 2903, the World Congress declared Terra off-bounds for non-terrestrial beings, as an offshoot of the Terra for Terrans movement. Before then, anyone could visit Earth. After the gate clanged down, a non-terrestrial could only get onto Sol III as a specimen in a scientific collection—in short, as an exhibit in a zoo. That's what the Corrigan Institute of Morphological Science really is, of course. A zoo. But we don't go out and hunt for our specimens we advertise and they come flocking to us. Every alien wants to see Earth once in his lifetime, and there's only one way he can do it. less than nineteen chlorine-breathing Procyonites wearing gas masks. It was also my sad duty to nix a Vegan who was negotiating through a Ghrynian agent. A Vegan would be a top-flight attraction, being some another one. I wondered what kind of stunt was being pulled. So far as I could tell, the being was quite plainly nothing but an Earthman. though he was clean and reasonably well dressed, he had a shabby look about him. He said, in level Terran accents, "I'm looking for a job with your outfit, Corrigan." "There's been a mistake. We're interested in non-terrestrials only." "I'm a non-terrestrial. My name is Ildwar Gorb, of the planet Wazzenazz XIII." I don't mind conning the public from time to time, but I draw the line at getting bilked myself. "Look, friend, I'm busy, and I'm not known for my sense of humor. Or my generosity." "Very clever, Mr. Gorb." I grinned at him and shook my head. "You spin a good yarn—but for my money, you're really Sam Jones or Phil Smith from Earth, stranded here and out of cash. You want a free trip back to Earth. No deal. The demand for beings from Wazzenazz XIII is pretty low these days. Zero, in fact. Good-by, Mr. Gorb." He pointed a finger squarely at me and said, "You're making a big another chance." He slammed the door and I let my grim expression relax into a smile. This was the best con switch yet—an Earthman posing as an alien to get a job! But I wasn't buying it, even if I could appreciate his cleverness intellectually. There's no such place as Wazzenazz XIII and there's only one human race in the Galaxy—on Earth. I was going to need some real good reason before I gave a down-and-out grifter a free ticket home. trouble. "You will hire me or trouble I will make!" in a spume of tanglemesh the instant he went for his blaster, but he didn't move. He bellowed, "I have vowed a vow, Earthman. Take me to Earth, enroll a Gursdrinn, or the consequences will be terrible!" I'm a man of principles, like all straightforward double-dealers, and one of the most important of those principles is that I never let but he kept up a growling flow of invective and threats until he was Earth!" "But—" "I must see her—her and this disgrace-bringing lover of hers. I must reason with her. Earthman, can't you see I must appeal to her inner flame? I must bring her back! " My face was expressionless. "You don't really intend to join our organization at all—you just want free passage to Earth?" "Yes, yes!" wailed the Stortulian. "Find some other member of my race, if you must! Let me have my wife again, Earthman! Is your heart a dead wasn't going to break up a good act just to make an alien squirrel happy—not to mention footing the transportation. I said, "I don't see how we can manage it. The laws are very strict on the subject of bringing alien life to Earth. It has to be for scientific purposes only. And if I know in advance that your purpose in coming isn't scientific, I can't in all conscience "I thought the truth would move you." "It did. But in effect you're now asking me to conspire in a fraudulent me," I said piously. "Then you will refuse me?" "My heart melts to nothingness for you. But I can't take you to Earth." "Perhaps you will send my wife to me here?" There's a clause in every contract that allows me to jettison an unwanted specimen. All I have to do is declare it no longer of scientific interest, and the World Government will deport the undesirable alien back to its home world. But I wouldn't pull a low He spoke in a drab monotone that almost, but not quite, had me weeping. to commit suicide because of me. I have a conscience and it's troubling me. But get this: I just want to finish off my recruiting, pack up and go home to Earth. I don't want you hanging around here bothering me. I'm not looking to hire new staff members, and if you switch back to claiming you're an unknown life-form from Wazzenazz XIII, the answer is dragging helplessly along in his wake, hanging desperately to his belt. struggling little alien in an unbreakable tanglemesh.

<question>:
Why was the narrator in so much trouble?

<options>:
A he refused to let certain beings go to Earth
B he killed a non-terrestrial
C he was responsible for a non-terrestrial death
D he was conning non-terrestrials to go to Earth

<answer>:

C