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

<passage>:
By JAMES MacCREIGH Revolt was flaring on Callisto, and Peter Duane held the secret that would make the uprising a success or failure. Yet he could make no move, didn't know for whom he fought. win that way, so let's leave the guns where they are." came, was controlled. "Don't think we're going to let this go," he said. "We'll take it up with Andrias tonight. We'll see whether you can bracing him against the thrust of the rocket engines underneath, He said, "Duane, Andrias is your boss, not mine. I'm a free lance orders from him." Leave Andrias out of our private argument." have to kill you!" Already his hand was streaking toward the grip of his dis-gun, touching it, drawing it forth. But the white-haired man was faster. His arms swept up and pinioned Duane, holding him impotent. "Don't be a fool," he grated. "Duane—" went for his own gun. warning every soul on it to take shelter, to strap themselves in their stimulant, to help you throw off the shock of your—accident. You're remember me. My name's Andrias. I've been waiting here for you to wake leave you alone for a moment. Don't talk too much to him, Mr. Andrias. "I won't," Andrias promised, grinning. Then, as the girl left the room, the way so permanently. Well, no matter. If you had to kill him, it's He looked at the man named Andrias. Andrias straightened, turned a darkly-suspicious look on Duane. "Don't play tricks on me," he said savagely. "I haven't time for them. I won't to get rough. This is a lot more important to me than your life is." "Go to hell," Duane said shortly. "I'm playing no tricks." There was an instant's doubt in Andrias' eyes, then it flashed away. He running this show!" Two large, ugly men in field-gray uniforms, emblazoned with the Andrias for instructions. "Duane here is resisting arrest," Andrias said. "Take him along. We'll something against me, save it. Wait till my head clears. I'm sure I can explain—" "Explain, hell." The dark man laughed. "If I wait, this ship will be Whoever this man Andrias was, thought Duane, he was certainly a man of gave the orders. The crew of the rocket made no objection when Andrias and his men took A long, powerful ground car slid up before them. Andrias got in front, climbed in beside him. Andrias gave a curt order, and the car shot The driver, sitting beside Andrias, leaned forward and readied a hand Andrias, up ahead, was turning around. He looked sharply at Duane, for "Who's this man Andrias?" Duane whispered to the nearest guard. The man stared at him. "Governor Andrias," he said, "is the League's Andrias here to—well, to govern for them." "League?" Duane asked, wrinkling his brow. He had heard something about had brought him there, at Andrias' order, and left him. That had been conjure them into stronger relief, or to exorcise them entirely. Somewhere, some time, a man had said to him, " Andrias is secretly arming the Callistan cutthroats for revolt against the League. He wants personal power—he's prepared to pay any price for it. He needs guns, Earth guns smuggled in through the League patrol. If he can wipe out the League police garrison—those who are loyal to the League, still, instead of to Andrias—he can sit back and laugh at any fleet Earth and And if he can arm enough of Callisto's rabble, he can't be stopped. That's why he'll pay for electron rifles with their weight in gold. keeps perpetually averted from Earth, as if the moon knows shame and wants to hide the rough and roaring dome city that nestles in one ," he thought. " Apparently I'm a Duane looked around. The guard beckoned. "Governor Andrias wants to memory as he entered. One of the ancient Earth dictators had employed The guard had remained just inside the door, at attention. Andrias Andrias said, "I've had the ship inspected and what I want is on it. Dark red flooded into Andrias' sallow face. His jaws bunched angrily Mentally he shrugged. What difference did it make? Andrias exhaled a deep breath. You could see the tension leave him, the what he was doing—he might as well play it to the hilt. "When do I get Andrias picked up the paper and looked carefully at the signature. He Andrias' eyes widened. "You amaze me, Duane," he said. He rose and know that this is all the rifles I need. With them I'll required. Already the hands that he had locked behind him were clenched, taut. Already the muscles of his legs were tensing. "You're ready," he repeated. "You've armed the Callistan exiles—the worst gutter scum on nine planets. You're set to betray the League that gave you power here.... Well, that changes things. I can't let you do it!" He hurled himself at Andrias, hands sweeping around to grapple for the own hands were diving for the twin heat guns that hung at his waist. Duane saw his danger, and reacted. His foot twisted around Andrias' his hands at the other's throat gripped tighter. He lunged feeling flesh and cartilage give as Andrias' nose mashed flat. His own ," he thought. " But Andrias was not dead, though he was out as cold as the void beyond Andrias' ornate, bare-topped desk and one luxurious chair behind it a tasseled bell cord within easy reach of Andrias' chair Methodically he ransacked the drawers of Andrias' desk. Papers, a whole arsenal of hand guns, Callistan money by the bale, ominously Andrias over and searched his pockets. More money—the man must have had a fortune within reach at all times—and a few meaningless papers. Duane took the release he had signed and tore it to shreds. But that was only a gesture. When Andrias came to, unless Duane had managed to would not keep him from the rocket's lethal cargo! When Andrias came to.... Andrias—and the idea withered again. He had thought of forcing Andrias himself to front for him, at gun's who lose them. Andrias' throat was speckled with the livid marks of Duane's head, butting Andrias in the face, had drawn a No guard of Andrias' would have been deceived for an instant, looking at that face—even assuming that Andrias could have been forced to cooperate by the threat of a gun. Which, considering the stake Andrias had in this play, was doubtful.... He stood up and looked around. He had to act quickly. Already Andrias' Andrias now, in cold blood, with so much to gain and nothing to lose? chopped it down on Andrias' skull. Whatever they say, I'm not a killer! Quick suspicion flared in his eyes, then certainty as he saw Andrias Tugging and straining, he got the limp form of Andrias into his own Venus-wool scarf Andrias wore knotted about his throat. He tested his bindings with full strength, and smiled. Those would hold, let Andrias struggle as he would. belt and spaceman's kerchief. He dragged him around behind the desk, thrust him under it out of sight. Andrias' chair he turned so that the then, the fact of Andrias' unconsciousness might not be noticed.

<question>:
Why does Andrias want to arm his people?

<options>:
A So that they can defend themselves against the League's imminent attack.
B So that he can develop a well trained army on Castillo that can help the League fight against its enemies.
C To overthrow the League and seize power for himself.
D To overthrow the League and end their oppression of the people on Castillo.

<answer>:

C