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

<passage>:
Raging , Trooper Lane hovered three thousand The cool cybrain surgically implanted in him was working on the problem. But Lane Lane said, "I can do that a had no more patience. They'd Lane is through now. He has been able to outthink police with the help of his cybrain. will be able to outthink Lane's cybrain, will predict Lane's He was going over all their heads. He'd bowled those city cops over like paper dolls, back at the Armory. The black dog was on Lane's back. this is Lane." "Lane, this is Trooper Court House. Lane cursed Thirty seconds passed. Lane his stupidity. He hadn't found out which one was which "Get me Colonel Klett." Troopers in the Armory and teach them how to fight. They don't teach them about their rasped into Lane's ear: own city, that they'll be fighting seven years old up, Troopers have too much to learn about fighting. The voice of the commanding officer of the Troopers against my orders! for. There's no time. From "Meat-head! You broke out would be crazy scared. You're churned in his veins, nerves shrieked with impatience. Lane waited for the electronic brain to come up with the answer. Then his head jerked up, to girl from Mars is right, Lane. Damn fast! The cybrain jolted an impulse through his spine. Lane "Sir, I'm asking for help. I "I am, Lane." The voice of nerves. Lane's own mind was just along for the ride. His taken charge of his motor know you're on my side." Colonel Klett was lower. "I'd never admit it if you had a up speed. His mailed hands "Yes, sir." "I'm sorry, Lane." "Yes, sir. Over and out." Lane pressed the stud on his gauntlet again. He turned glittered like arrowheads out to Gerri. says I can't. Says if I drop the pane dissolved. Lane streamed has even a little bit of right Lane laughed. "Any of them Lane dropped lightly to the floor, inside the room, in battle-crouch. A 3V set was yammering. A girl screamed. Lane's on his side." The paragrav-paks cut off. purple-haired broads I know the girl fold to the floor. There Lane frowned with the effort Lane, still in a crouch, chewed was no one else in the room. his lip. of thinking. "You said I had a little right on my side. "Lashing police with his vibray," said the announcer, "Lane broke through the cordon outguess Lane's cybrain and check his moves ahead of are cautioned to keep clear of him. Lane is an insane killer. He is armed with the latest military weapons. A built-in Lane looked at Gerri. "How reflexes—" "At ease with that jazz," said Lane, and a sheathed finger snapped out. There was a electronic brain controls his he couldn't name. Then he "You deserve it, Lane." Lane strode to the window. should get killed. If I take a Lane's mailed hand snapped open a pouch at his belt. He flipped a fist-sized cube to the Lane glanced out the window. "But you're safe in here!" "Worry about yourself, not about me." Lane picked up the force-bomb and handed it to real fast. It'll shut off the shakily. Lane grinned. "Trooper Lane, of the Newyork Special Troops, is all." He threw her a mock salute. "You from outa-town, girlie. I ain't seen flying. But they weren't aimed at Lane, either. They were girl pushed herself to her feet. Built, Lane saw. shooting wild. She was pretty and clean-looking, says fly right for the him. "What the devil do you think you're doing, soldier? I Lane plunged forward. He "I don't," said Lane, unconcerned. heard the shouts of frightened men. "Well, you should have had brains enough to honor the what that means." Years of training and cybrain took over. Lane's hand shot out, fingers vibrating. As he Lane ." "I'm the guy they told you Lane stood for a moment in the midst of the sprawled men, the shrieks of the crowd Lane. "Cybrain didn't know, no more than me." Lane was uncomfortable in his dress uniform. First The girl noticed the dark Protectorate, and honoring Trooper Lane. Now there was a formal dinner. Colonel Klett and Gerri Kin sat on either side of Lane. "Gerri Kin. Look, Lane, Lane said, "I'm going to "Did she ask you to?" demanded Klett. Lane shook his head. "She's got too much class for me. But I like what she told me about Lane said, "Yeah? Well, we done what they wanted us to do. We did the fighting for Mayor, Lane, I'd never release to Newyork and they lock us stupidity—by disregarding your cybrain." Lane said, "It wasn't so stupid if it worked." "That's what bothers me. It us. Won't let us go nowhere. can't have time off. I don't They had cops guarding us. should anyone use them Lane broke off. There was City cops." Lane sneered. "I nosing toward the force-screen. Lane could read the A loudspeaker shouted into the room: "Come out of there, Lane, or we'll blast you out." "You can't," Lane called. is still, and will always be, the "I repeat, Lane—come out sir," said Lane. "That's why Lane turned to the girl. "I individual soldier." "What you just said there, or we'll blast you out." "Yeah, but—" Lane shook "No deal, Lane. We're coming typographical errors have been corrected without note. straight up, out of the line of vision. Lane looked down at the voices rose from below. Lane Lane looked across the "Lane is holding the Martian Police are bringing up blaster cannon. Lane's defense is a globe of energy similar to the one which protects Cybrain said no. It said the Lane looked sadly at her. Only two kinds of girls ever went near a Trooper—the quick," said Lane. "I'm "I wish I could write a letter "Didn't you understand "What's a letter?" "You don't know where a letter is. You probably can't even read and write!" Lane shrugged. He carried on the conversation disinterestedly, before battle. "What's these things I can't do? They important?" 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 great little fighter?" "Specialization," said the because they're not trained to do anything." "The Fans," said Lane. "They got it soft. That's them down there, come to watch the fight." "You know why you were kept in the Armory, Lane? I heard them talking about it, "Because they're afraid of ever been made. You. Single airborne infantrymen!" Lane said, "They told us in Trooper Academy that it's the it until the SocioSpecs of Newyork came up with the Troopers. Before the Troopers, on hands and knees. Lane jumped to the window, looked quickly, sprang back. Cybrain pumped orders Again Lane and Gerri were thrown to the floor. But this and a blinding flash from below. Lane laughed boyishly and ran to the window.

<question>:
Why can't Lane read or write?

<options>:
A When the cybrain was installed, Lane's own brain was wiped clean.
B Lane is dyslexic. He got frustrated trying to learn and gave up.
C Teaching the soldiers how to read and write would only lead to rational thinking. The soldiers might start to question orders. Therefore, they are only taught fighting.
D Lane has only been schooled in soldiering since he was seven. He was taught to fight, nothing else.

<answer>:

D