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

<passage>:
"Clark, how's the time going?" he said. "All right, let's use those minutes. I'm beginning to see this thing by logical methods. But given the situation that neither data right?" "In effect," she said cautiously. "And it's my guess that we're never going to get the answer by nor time is adequate, and an diving for it—not in time, anyhow. ("One-Shot") Braun was in the city that particular week end for Braun. that to the master of the anything from the prob series, Clark? I thought not. On a one-shot gamble of this kind, the 'laws' of chance are no good at all. For that matter, the so-called ESP experiments showed us long ago that even the way we construct random tables is full of holes—and that a man with a feeling for the essence of a gamble can make a monkey out of chance almost at will. "And if there ever was such a man, Braun is it. That's why I asked and—play a hunch." "You're out of your mind," Anderton said. the breed, who come to us expecting that their plotting has already been ignore the judgment. It was Braun the messenger had been fast, and the gambler hadn't bothered to read what a college student had thought as thought of Braun when the news done for them—but it's inherent in the others looked him over frankly. He was impressive, all right. It would have been hard for a stranger to believe that he was aiming at respectability to the eye, he was already there. He was tall and spare, and walked perfectly erect, not without spring despite his age. His clothing was as far from that of a casualness. It was only when he opened his mouth that One-Shot Braun was in the suit with him. "I come over as soon as your runner "Mr. Braun, this is Joan Hadamard, Braun's aristocratic eyebrows went nothing about things like that. I'm surprised with you. I thought CIA had all the brains it needed—ain't you got machines to tell you answers like that?" We're sweating everybody on "Let us do the guessing, Monig. that none of them know anything the whole procedure was designed to be automatic." All right, maybe it's got a clockwork fuse that didn't break with the impact. board the ship now, but it's my guess "All right, we'll take it," I said. to Braun. "As you can see, we're Braun. One throw of the dice—one on over here yourself." "Right." He sounded relieved. Official people have a lot of confidence in CIA too much, in my estimation. "Why not?" "It ain't my kind of thing," he why should you guess wrong? Your hunches have been working for sixty years now." Braun wiped his face. "No. You That's why it's no good. On things that matter to me, my hunches don't work ." Ludmilla . I looked up at Braun. He was be. I tried to keep at least my voice calm. about two per cent of their capacities and their time. I shot them a couple of sentences of explanation, trusting "Please try it anyhow, Mr. Braun—as them to pick up whatever else they Braun's face was a death mask. This is CIA, Harris calling. Come in, Slowly, Braun opened his eyes. "Not a thing, Dr. Harris," Monig !" Anderton was already grabbing for the phone. "You're right, Mr. Braun. If it isn't already too late—" "It won't go off. That's the one thing you can be sure it won't do." "Have you taken blood tests?" Dr. Harris, we've got to evacuate the hunches don't work on stuff like this." "But they do," I said. "I'm sorry fifty possible reasons." "You can't take such a gamble," he said grimly. "There are eight and "Are you trying to say that CIA staged this? You ought to be shot, the whole pack of you!" "You passed your authority to us when you hired us," I pointed out. can't let you do it." but otherwise leave it entirely alone. "Actually, you see, your hunch was right on the button as far as it went. We didn't ask you whether or not The expression on Braun's face known Braun, briefly and to no of him fifteen years ago. He came decision—except that, since his eyes were open, I could see that it was directed at me. "If this was the old days," he said in an ice-cold voice, "I might of made the colonel's idea come true. I don't go for tricks like this, Andy." forward and held out his hand, while a deadline on the test, Mr. Braun. For some reason, he had been amused by the brash youngster who'd barged in on him and demanded the lowdown, and had shown me considerable Braun was in the city over the week with a vengeance. He was still a professional gambler, and according to what he had told the Congressional Investigating Committee ever comes, we're going to have to have you here, as an active part of our investigation. Your intuition for the one-shot gamble was the one estate realtors knew him well as the almost man who had of us, Anderton included, watched Braun intently, but his impassive thing that bailed us out this time. his thoughts were running. When he did speak at last, what he said must have seemed insanely too, not because she had ever met him, but because for her he was a There was quite a long silence. All face failed to show any trace of how Joan had been following his career, type study in the evolution of what "There's always an almost-open conflict between the desire to be powerful and the desire to be accepted at peace with himself. Transcriber's Note: your ordinary criminal is a moral imbecile, but people like Braun are damned with a conscience, and sooner or later they crack trying to appease this is more important." It was, I believe, the sigh of a man "Don't you believe it. The symptoms are showing all over him. Now never fail. But the plays he backs always do. They have to and if they were to succeed it would double his guilt instead of salving it. It's the same way with the young actresses. He's not sexually interested in them—his type never is, because living a rigidly orthodox "Of course it isn't," Joan had said. "The next thing he'll do is go in for You watch." She had been right for Braun was an entry into politics grounds that any link might be useful, I phoned him. He remembered me instantly like most uneducated, power-driven men, he had a memory as good as any machine's. "You never did send me that paper you was going to write," he said. His although he was in his seventies now. "You promised you would." "Kids don't keep their promises "Yes. I didn't know you knew I Braun chuckled. "I still know a "That I can't tell you over the phone. But it's the biggest gamble You're sure it's top stuff?" "My word on it." He was silent a moment. Then he "The paper? Sure, but—" Then I got it. I'd given him my word. "You'll get it," I said. "Thanks, Mr. Braun." I called headquarters and sent a to Braun without stopping to breathe was sitting by the big desk, clenching his fists and sweating his whole posture telegraphed his controlled helplessness. Cheyney was bent over a seismograph, echo-sounding "Wild goose chase?" Joan said, scanning my face. "Not quite. I've got something, if I can just figure out what it is. Remember One-Shot Braun?" "Yes. What's he got to do with it?" "Nothing," I said. "But I want to bring him in. I don't think we'll lick this project before deadline without him." "What good is a professional gambler on a job like this? He'll just get in the way." Harris, you've got to let me get that alert out!"

<question>:
Why did Dr. Harris call Braun?

<options>:
A He is a diver.
B He has a criminal past.
C He knows how to defuse bombs.
D He has good intuition.

<answer>:

D