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

<passage>:
hovered three thousand feet above Tammany Square. The cool cybrain surgically implanted in him was working on the problem. But Lane had no more patience. They'd couple times more, but it burns out the force-globe. Then I'm dead." amplified voice: "—approximately Lane is through now. He has been able to outthink police with the help of his cybrain. Now police are feeding the problem to their giant analogue computer in the sub-basement fifty killed. But Chi for them? Damn right I will be able to outthink Lane's cybrain, will predict Lane's moves in advance. Four more blaster cannon are coming did. Just a little time off, so cops over like paper dolls, back at the Armory. The black dog was on Lane's back. The police analogue computer the CinC of the Newyork Troopers? The humming paragrav-paks embedded beneath his shoulder blades held him motionless above Newyork's three administrative towers. Thirty seconds passed. Lane could hear the clank of caterpillar treads as the mobile ahead of time. Troopers in the Armory and teach them how to fight. They don't teach them about their They keep Tammany Square. The voice of the commanding rasped into Lane's ear: "Meat-head! You broke out against my orders! of those thousands of windows. Old cybrain, a gift from the Trooper surgeons, compliments of the city, would have cops coming. Two black paragrav-boats whirred along the translucent underside of Newyork's anti-missile force-shield, the Shell. Old cybrain better be fast. Damn fast! The cybrain jolted an impulse through his spine. Lane somersaulted. Cybrain had taken charge of his motor nerves. Lane's own mind was alive. You've had it, son. I'd only lose more men trying to rescue you. When they feed "Yes, sir. Over and out." Lane pressed the stud on his gauntlet again. He turned to Gerri. "You're okay. I wish I could let you out. Old cybrain says I can't. Says if I drop the force-globe for a second, orange and blue. He shrugged away the problem. Cybrain knew what it was doing. they'll fire into the room, and different." vibray," said the announcer, "Lane broke through the cordon computer is now hooked directly to the controls of the blaster cannon battery. It will outguess Lane's cybrain and check his moves ahead of time." are cautioned to keep clear of him. Lane is an insane killer. He is armed with the latest military weapons. A built-in electronic brain controls his reflexes—" "At ease with that jazz," said Lane, and a sheathed finger side. There's too many damn Troopers and not enough good persons like you. Old cybrain says stay here, but I don't guess I will. I'm gonna pay "But you're safe in here!" "Worry about yourself, not about me." Lane picked up the force-bomb and handed it to dose of the vibray to slap her He stepped up on to the window ledge. Automatically, the cybrain cut in his paragrav-paks. "So long, outa-towner. Now! shakily. Lane grinned. "Trooper Lane, of the Newyork Special awake. shooting wild. Which way now? Looks like I got a chance. Old cybrain says fly right for the cannons. ahead. Go to hell, old cybrain. I'm doing all right by myself. I come to see the Mayor, and "I don't," said Lane, unconcerned. "Well, you should have had brains enough to honor the him. There were five men on the balcony—emergency! Years of training and cybrain Her large, dark eyes narrowed. "Who sent you?" "My cybrain sent me." She went openmouthed. "You're took over. Lane's hand shot out, fingers vibrating. As he go over there." "Whaddaya know," said Lane. "Cybrain didn't know, no more than me." "Force-screen. Nothing gets past, except maybe a full-size blaster-beam. Keeps cops out. Keeps you in. You anybody important?" "I told you, I'm an ambassador. Newyork's new Military Protectorate, and honoring Tammany Square inaugurating Trooper Lane. Now there was From Mars. I'm on a diplomatic mission." "Planet? Oh, gotta go by spaceship. What's "Gerri Kin. Look, Lane, they'll send another ambassador next time. Nothing personal—I just don't like it holding me is no good. It'll and my buddies, we just come back from fighting in Chi, He takes orders from Newyork." Gerri Kin said, "That's what the force-domes did. The do. We did the fighting for them. So we come back home to Newyork and they lock us up in the Armory. Won't pay your cybrain." Lane said, "It wasn't so stupid if it worked." us. Won't let us go nowhere. They had cops guarding us. you from duty. But I know better. You beat that stupidity—by disregarding be hurt." "Exactly. The computer could outguess a machine, like your cybrain. But you introduced a totally unpredictable factor—human emotion. weapon in man's arsenal is still, and will always be, the "I'm tired of being a weapon, sir. I want to be a human gleaming barrel of a blaster cannon caught the dim light filtering down through Newyork's olive-drab, box-shaped caterpillar walls. "Lane is holding the Martian Ambassador, Gerri Kin, hostage. You can see the Martian tricolor behind his force-globe. Police are bringing up blaster cannon. Lane's defense is a globe of energy similar to the one which protects Newyork from aerial attack." Lane grinned back at Gerri Kin. "Whole town's down him a chance to let her out? Maybe he could do it now. Cybrain said no. It said the second he dropped his force-screen, they'd blast this room a Shell like worms in a corpse. "What's a letter?" important I realize they are. You know how to fight, don't you? I'll bet you're perfect with those weapons." "Listen. They been training me to fight since I was a little kid. Why shouldn't I be a SocioSpecs run the government. TechnoSpecs run the machinery. Troopers fight the wars. And ninety per cent "Because they're afraid of the Troopers. You men did too good a job out in Chi. You are the deadliest weapon that has ever been made. You. Single airborne infantrymen!" Newyork came up with the Troopers. Before the Troopers, governments concentrated safe from bombs. They learned to be self-sufficient under Troopers wiped out that feeling of security, when you infiltrated Chi and conquered it." "We scared them, huh?" them so much that they'll let me be killed. They'll actually risk trouble with Mars just to kill you." Lane jumped to the window, looked quickly, sprang back. Cybrain pumped orders to his nervous system. "Blaster cannon," he said. "But just one. Gotcha, cybrain. I can beat that." He picked up the black box that generated his protective screen. Snapping it open with around the open space

<question>:
What is a cybrain?

<options>:
A A cybrain is a cybernetic brain. The cybrain is in control of the Newyork Special Troops, like a hive mind.
B A cybrain is a dispatch system that sends the Newyork Special Troops on their assignments.
C A cybrain is a cybernetic brain. Cybrains are implanted in soldiers to make them the ultimate weapons.
D A cybrain is an AI handler. Each of the Newyork Specail Troops has a cybrain which is their only contact to the command center.

<answer>:

C