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

<passage>:
This guard smelled trouble and it could be counted on to come—for a nose for trouble was one of the many talents bred here! I His name was Liam O'Leary and there was something stinking in his nostrils. It was the smell of trouble. He hadn't found what the trouble was yet, but he would. That was his business. He was a captain of guards in Estates-General Correctional Institution—better known to its inmates as the Jug—and if he hadn't been able to detect the scent of trouble brewing a cell-block away, he would never have survived to reach his captaincy. couldn't adjust herself to it, now that she was in. He demanded: "Why wouldn't you mop out your cell?" O'Leary shook his head. "Let her talk, Sodaro." It said in the to speak in their own behalf in disciplinary proceedings." And O'Leary She burst out: "I never got a chance! That old witch Mathias never told me I was supposed to mop up. She banged on the door and said, 'Slush the mess hall." He shook his head reprovingly at the prisoner. "The block guard had to break up a fight between her and another wench, and she claimed the same business—said she didn't understand when the O'Leary stopped her. "That's enough! Three days in Block O!" Captain O'Leary took a long drink of water from the fountain marked "Civil Service." But it didn't wash the taste out of his mouth, the smell from his nose. What got into a girl to get her mixed up with that kind of dirty business? He checked out of the cell blocks and walked across the O'Leary noted, with the part of his mind that always noted those but they had a—well, a sort of natural, relaxed joy of living. O'Leary Conan, now—he was a big buck greaser and he would be there for the next hour, languidly poking a piece of fluff out of the air filter on the prison jeep. Lazy, sure. Undependable, certainly. But he kept the Every prison has its Greensleeves—sometimes they are called by different names. Old Marquette called it "the canary " Louisiana State called it "the red hats " elsewhere it was called "the hole," "the snake pit," "the Klondike." When you're in it, you don't much care what irritable guard, climbing the steel steps toward Block O from the floor below, when she heard the yelling. "Owoo-o-o," screamed Sauer from one end of the cell block and "Yow-w-w!" shrieked Flock at the other. The inside deck guard of Block O looked nervously at the outside deck guard. The outside guard looked impassively back—after all, he was on the outside. The inside guard muttered: "Wipe rats! They're getting on my nerves." The outside guard shrugged. The outside guard said sourly: "A woman, for God's sake. Now O'Leary knows I hate it when there's a woman in here. It gets the others all riled up." tanglefoot electronic fields that swamped the floor of the block corridor and of each individual cell. While the fields were on, you could ignore the prisoners—they simply could not move fast enough, rule that, even in Block O, you didn't leave the tangler fields on all the time—only when the cell doors had to be opened or a prisoner's restraining garment removed. The howling started all over again. The inside guard finished putting the new prisoners away and turned off the tangler field once more. He licked his lips. "Say, you want to take "You're yellow," the inside guard said moodily. "Ah, I don't know why I don't quit this lousy job. Hey, you! Pipe down or I'll come in and beat your head off!" long. III "I smell trouble," said O'Leary to the warden. "Trouble? Trouble?" Warden Schluckebier clutched his throat and his little round eyes looked terrified—as perhaps they should have. Warden The warden, faintly relieved, faintly annoyed, scolded: "O'Leary, what O'Leary hesitated, frowning. How could you explain to the warden that The warden raised his hand. "Please, O'Leary, don't bother me about "O'Leary, you're a guard captain, right? And I'm your warden. You have O'Leary snapped erect, abruptly angry. Pass! What the devil way was that for the warden to talk to him? "Excuse the expression, O'Leary," the warden said anxiously. "I mean, O'Leary choked back his temper. "Warden, I'm telling you that there's trouble coming up. I smell the signs." "Handle it, then!" snapped the warden, irritated at last. "It isn't," the warden said positively. "Don't borrow trouble with tonight, O'Leary, and we'll get along fine. 'Specialization is the—' His phone was ringing. The warden picked it up irritably. "Hello," barked the warden, not even glancing at the viewscreen. "What "O'Leary," he said faintly, "my mistake." thought that maybe, after all, the man was really in pain. Maybe the crazy screams were screams of agony, because certainly his face was the Sue-Ann froze, waiting to see what would happen. What actually did happen was that the guard reached up and closed the switch that actuated the tangler fields on the floors of the cells. The prison rules were humanitarian, even for the dregs that inhabited the Greensleeves. Ten minutes out of every two hours, even the worst case lovely term for it. At the guard's yell, the inmates jumped to their feet. bed—nobody had warned her that the eddy currents in the tangler fields had a way of making metal smoke-hot. She gasped but didn't cry out. underprivileged clerk, she told herself, conscience-stricken. Across the hall, the guard was saying irritably: "What the hell's the matter with you?" He opened the door of the cell with an enough. And Flock was gasping, through real tears: "Cramps. I—I—" "Ah, you wipes always got a pain in the gut." The guard lumbered around Flock to the draw-strings at the back of the jacket. Funny smell in here, he told himself—not for the first time. And imagine, some people didn't believe that wipes had a smell of their own! But this time, he realized cloudily, it was a rather unusual smell. Something burning. Almost like meat scorching. stinking wipe take care of his own troubles. He only had ten minutes to get all the way around Block O and the inmates complained like crazy if he didn't make sure they all got the most possible free time. He was cooking his hand and the blister against his abdomen, where the shiv had been hidden during other rest periods, felt like raw acid. "All right," whispered Flock, "just walk out the door and you won't get It was Flock on the phone to the warden—Flock with his eyes still your guards here. Enough said? So get a medic in here quick, you hear?" And he snapped the connection. O'Leary said: "Warden, I told you I smelled trouble!" The warden lifted his head, glared, started feebly to speak, hesitated, and picked up the long-distance phone. He said sadly to the prison operator: "Get me the governor—fast." Riot! The word spread out from the prison on seven-league boots. impact of the news from the prison. For the news touched them where their fears lay. Riot! And not merely a street brawl among roistering wipes, or a bar-room fight of greasers

<question>:
Why was O'Leary sharing his concerns with the warden?

<options>:
A he was frustrated with the lack of help he was getting
B he was mad that inmates were playing together
C he was hoping to stop a potential riot
D he thought the prison had a terrible smell

<answer>:

C