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

<passage>:
that. It doesn't matter how outlandish a whopper you tell. Unless, of course, they've made up their minds that you just just what they've done. It wouldn't make any difference to them what them believe it." Altairian stopped, producing a huge key ring from some obscure that they'd have to believe—a lie they simply couldn't help but believe—" He turned on Meyerhoff, his hands trembling. "Do they think best I can do under the circumstances." Meyerhoff scowled, and turned abruptly to the guard. "We'll have some privacy now, if you please. Interplanetary ruling. And leave us the light." The guard grumbled, and started for the door. "It's about up and down on one foot, staring idiotically into space. "If I could only think—" he muttered. "Somebody—somewhere—something "No, no, I've got a problem in the bag!" Zeckler's cheeks flushed. "Let's go back in there—I think I've got an answer!" The courtroom quieted the moment they opened the door, What happened? I mean, all they had to do was get a man over here, get the extradition papers signed, and provide transportation off the planet for me. Why so much time? I've been sitting here rotting—" He broke off in mid-sentence and stared at Meyerhoff. "You brought the papers, didn't you? I mean, we can leave now?" " All Earthmen are absolutely incapable of telling the truth. " Consulate on Altair V, just waiting for me to walk in and pick you live long enough to walk in and pick them up, that is." "What do you mean, if?" "Really," said Harry Zeckler loftily, "it was so obvious I'm amazed that it didn't occur to me first thing." He settled himself practically dead. You may not know it, but you are. You walk Rocket and grinned at the outline of Altair IV looming larger into a newly opened planet with your smart little bag of tricks, walk in here with a shaky passport and no permit, with no knowledge of the natives outside of two paragraphs of inaccuracies in the Explorer's Guide, and even then you're not down comfortably in the control cabin of the Interplanetary " You mean I'm not being extradited? " that they simply could not cope with. Something that would You've committed a crime here—a major crime. The Altairians throw them into such utter confusion that they wouldn't Meyerhoff grinned unpleasantly. "I mean precisely that. dare are sore about it. And the Terran Consulate isn't willing to sell all the trading possibilities here down the river just to natives are out to get you. Personally, I think they're "You've committed the most heinous crime these creatures can a trading alliance with Altair I, and that includes uranium, too. Smart people don't gamble with loaded dice. You scared them so badly they don't want anything to do with us." imagine, and they're going to get you for it if it's the last thing I've got a fortune in credits sitting back at the consulate waiting for me—enough to keep me on silk for quite a while, I might say. I think I'll just take a nice, long vacation." Meyerhoff turned to him, and a twinkle of malignant glee appeared in his eyes. "Yes, I think you will. I'm quite sure of trial. The Altairians weren't any too happy to would first fall prey to the fast-trading boys. They spread out from Terra with the first wave of exploration—the slick, fast-talking con-men who could work new territories unfettered by the legal restrictions that soon closed down the more established you know. Yes, I think we'll take a nice long vacation together, straight back to Terra. And there I think you'll face a jury trial." Arrest! " planets. The first men in were the richest out, and with them. Altair I had been recognized at once by the Trading through some curious quirk of the Terrestrial mind, they knew I don't think you'll get off." Transcriber's Note: in spite of all their bumbling and fussing and squabbling they're not so dull. You'd have found out that they're marsupials, and that two out of five of them get thrown out of their mother's pouch before they're old enough to survive. You'd have realized that they have to start fighting for individual rights almost as soon as they're born. Anything goes, as long as it benefits them as individuals." heard of that, had you? And you've never heard of other things, too. You've probably never heard that there are just too many Altairians here for the food their planet can supply, and their diet is so finicky that they just can't live on anything that in their economy, not money nothing but land. To get land, it's every man for himself, and the loser starves, and their entire legal and monetary system revolves on that principle. they're pathological! Only a fool would tell the truth when his life depended on his being a better liar than the next guy! Lying is the time-honored tradition, with their entire legal suppose they don't have one. They have only the haziest idea what truth represents, and they've shrugged off the idea as Meyerhoff sighed. "You've got twelve mad Altairians in your going to sit quietly by and let them butcher me? How could think it's a big joke—after all, what could a judicial oath mean to them?—but they agreed. Only thing is, they're going to sharply, and spilled two guards over on their faces. "Privacy," he grunted, and started back up the slippery corridor. It certainly looked Altairians attempted to push through the door at once. Zeckler Altairians filed in, in order of stature, stalking across the room "We are reading the case of the people of Altair I," the "Conspiracy to overthrow the government of Altair I. Brutal with the accursed scum of Altair II in preparation The Altairian shrugged indifferently. "Now—later—" he whispered. "They're insane!" "Of course they are," Meyerhoff whispered back. "But what am I going to—" Altairian equivalent of a hungry grin at the prosecutor. Then of the seventh crossing of Altair II (may the Goddess cast "I never saw him before in my life," Zeckler moaned to Meyerhoff. "Listen to him! Why should I care where their Goddess—" "Of course it isn't! Can't you understand? These people have no regard for truth. It's stupid, to them, silly, a mark of low intelligence. The only thing in the world they have any respect for is a liar bigger and more skillful than they are." "now, because I may not live long enough to repeat what I am about to tell you—" The murmur quieted down, all ears straining in their headsets There was a loud hiss from the back of the court. Zeckler frowned and rubbed his hands together. "It was my misfortune," he said, "to go to the wrong planet when I first came to Altair from my homeland on Terra. I—I landed on Altair II, planet, at the hands of those barbarians. The conspiracy is "Wait! Your Honor, I request a short recess before I present my final plea." "Recess?" "A few moments to collect my thoughts, to arrange my Somehow, Zeckler managed to stumble from the witness stand, amid riotous boos and hisses, and tottered into the anteroom.

<question>:
Why don't the Altairians leave Altair I if it is so overpopulated?

<options>:
A They don't leave because they can only eat food grown on Altair I.
B The Goddess won't let them leave.
C They don't leave because no other planets will clear ships from Altair I for landing. Nobody likes liars.
D They don't leave because they have not achieved space travel.

<answer>:

A