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

<passage>:
Earth coins." "Oh, that. Sure, I remember—Hey! You didn't!" "Yes. We made about a billion dollars on that one." "I will be double damned. You know, Pete, I sent her a hundred-buck back. "There were no lies involved. She really does have a fatal disease. So do you and I. Every day we grow older." "Uh!" exclaimed Doran. "And then the Red Ankh Society. You must have seen or heard their ads. "Well, hurry up with whatever it is," snapped Peri. "I got a date Peri's peaches-and-cream countenance began to resemble peaches and angle, so he will think of me as still his friend, because I have other plans for him too. But if we can't shake a million out of him for this that no one is interested any more in giving up even second-class citizenship on Earth to live in the Republic. But we only wanted to hire——uh, I mean engage—an, an advisor. We're not businessmen. We know our export trade hasn't a chance among all your corporations unless we get some—a five-year contract...?" He heard his words trailing off idiotically, and swore at himself. can attract anyone out of Newer York." "Thanks," said Matheny, "but, you see, I—we need—that is.... Oh, well. Thanks. Good-by." idea—but still he was at ease only with his books and his chess and his mineral collection, a faculty poker party on Tenthday night and an occasional trip to Swindletown— My God , thought Matheny, years out of date. He should find himself a hotel, he thought drearily, but he wasn't tired the spaceport would pneumo his baggage to him who was happily trying to mark the cards. Matheny would have found a few spins of roulette soothing: it was always an intellectual challenge against, say, the Grant, Harding &amp Adams Public Relations Agency. "Hm?" said Matheny. She explained. He bought a few hundred-dollar tokens, dropped a fifty-buck coin down a slot marked CONTRIBUTIONS, and sipped the martini he got back while he strolled around studying the games. He stopped, frowned. Bingo? No, he didn't want to bother learning "Oh. Thanks. Thanks ever so much. I, I, that is—" Matheny cursed his knotting tongue. Damn it, just because they're so much more hand to shake and chips rolled over the floor. "Damn! Oh, excuse me, I forgot this was a church. Never mind the chips. No, please. I just want They walked back to the deaconette's booth and Matheny cashed what remained of his winnings. "I don't want to—I mean if you're busy tonight, Mr. Doran—" "Nah. I am not doing one thing in particular. Besides, I have never met "There aren't many of us on Earth," agreed Matheny. "Just a small embassy staff and an occasional like me." "I should think you would do a lot of traveling here. The old mother planet and so on." "We can't afford it," said Matheny. "What with gravitation and distance, such voyages are much too expensive for us to make them for pleasure. Not to mention our dollar shortage." As they entered the shaft, he added wistfully: "You Earth people have that kind of money, at least in your more prosperous brackets. Why don't you send a few tourists to us?" call City of Time, and so on. As a matter of fact, I have given my girl one of those Old Martian rings last Ike's Birthday and she was made a million years ago by a, uh, extinct race ... I tell you, she appreciated me for it!" He winked and nudged. "Oh," said Matheny. He felt a certain guilt. Doran was too pleasant a little man to deserve— "Of course," Matheny said ritually, "I agree with all the archeologists making a new nation and all that, but people paying half a megabuck for their ticket expect some comfort and, uh, you know." "I do know," said Matheny. "But we're poor—a handful of people trying to make a world of dust and sand and scrub thorn into fields and woods and supplies—which can only be paid for in Earth dollars—and we can't export enough to Earth to earn those dollars." By that time, they were entering the Paul Bunyan Knotty Pine Bar &amp why do you call yourselves poor?" "Because we are," said Matheny. "By the time the shipping costs have been paid on a bottle, and the Earth wholesaler and jobber and sales and the advertising agency has been paid, and about fifty separate Earth taxes—there's very little profit going back to the distillery on Mars. The same principle is what's strangling us on everything. Old Martian artifacts aren't really rare, for instance, but freight charges and the middlemen here put them out of the mass market." "Have you not got some other business?" . sweepstakes, but the anti-gambling laws on Earth forbid that." Doran whistled. "I got to give your people credit for enterprise, anyway!" He fingered his mustache. "Uh, pardon me, but have you tried as security. No, the Minister of Ecology has a better-looking one. But who's interested? We haven't a thing that Earth hasn't got more of. We're only the descendants of a few scientists, a few political malcontents, oddballs who happen to prefer elbow room and a bill of liberties to the incorporated state—what could General Nucleonics every economist." Of course I haven't. I've not so much as mentioned the Red Ankh, for instance. But, in principle, I have told him the truth, told him of our "Ahhh!" said Matheny. "Bless you, my friend." "A pleasure." "But now you must let me buy you one." "What's wrong with your own people? I mean, Pete, it is not your fault there are so many rackets—uh, taxes—and middlemen and agencies and et cetera. That is just the way Earth is set up these days." Earth years, mind you." "I'm sorry to tell you this, Pete," said Doran, "but while that is not bad money, it is not what a high-powered sales scientist gets in Newer York. Plus his retirement benefits, which he would lose if he quit permanently." "I could offer a certain amount of, uh, lagniappe," said Matheny. "That some contacts.... "No, no, no commission, all done in the interest of interplanetary friendship ... well, anyhow, let's not talk business now. If you have got to stick to beer, Pete, make it a chaser to akvavit. What is A hell of a good bloke. He knew some very funny stories, too, and he laughed at Matheny's, though they were probably too rustic for a big-city taste like his. for us and make us some real money." "Con man? Oh. A slipstring." "A con by any other name," said Matheny, pouring down an akvavit. allons , or maybe alors ." you buy from Schwartzherz. Everybody knows he is expensive." While Matheny jittered about, shaving and showering and struggling with his new raiment, Doran kept him supplied with akvavit and beer. to—to—I mean of course I trust you, but—" "Forget it. I take a hundred security oaths a year, in my line of work. Maybe I can help you. I like you, Pete, damn if I don't. And, sure, years ago for the Billingsworth Expedition to find. We've been manufacturing relics ever since." " Huh? and they depend on our people to—Well, anyhow—" "I will be clopped! Good for you!"

<question>:
What is the relationship like between Gus and Peri?

<options>:
A They are colleagues working as spies in the government
B Peri is Gus’ boss
C They are conspiring con artists
D They are old friends owing each other favors

<answer>:

C