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

<passage>:
THE NON-ELECTRONIC BUG What I am is a genius, and I give you a piece of advice: Do not ever play cards with a stranger. The stranger might be me. Where there are degenerate card players around, I sometimes get a call. Not dice—I a little extra cash on the side. It turns out that the other little wholesalers in the loft building where he has his business are all card players, and no pikers, either. So Henry spread the word that hand I had to be nearby, but I had to keep moving so he wouldn't pay attention to me. And every time I got a look at his hand, I pushed the little button on the transmitter in my pocket. memorizing, but it was worth it. Henry knew every card the other man it alone every chance I get. That was where we first felt the trouble. Our new boy was around twenty. He had a swept-wing haircut, complete of the sting, but nobody laughs because the cracks are never funny. But they were to our new boy. He ran his fingers back along his hair. "Can't a fellow express himself?" himself? He wouldn't with hanging jowls and a big dollar cigar he announced that he only played for big stakes ... and, nodding toward the kid and me, that he didn't like an audience. Henry looked at us miserably. But what was he going to do? If he didn't street from Henry's place was a rundown hotel. That was our next stop. we had a chance. Provided Henry had been able to maneuver Chapo so his off on the transmitter as he read the cards to me. I couldn't see the players, didn't know the score but if he was giving the cards to me right, I was getting them out to Henry. I felt pretty good. I even began to feel kindly toward the kid. At my age, bifocals are standard equipment, but to judge from Skippy's fast, sure call of the cards, his eyesight was twenty-twenty or better. After about an hour, Skippy put down the glasses and broke the news: We took our time getting back to Henry's place, so Chapo would have "Eight big ones! Eight thousand bucks! And how you did it, I'll never the old system, Henry. But we couldn't have done it if you hadn't I looked too, and then I saw what he was puzzled about. It was pretty obvious that Henry had missed my signal. He and the fish had played by the window, all right. But the shade was down. When I turned around to look for Skippy, to ask him some questions, he was gone. Evidently he didn't want to answer. I beat up and down every block in the neighborhood until I spotted him opened his mouth to say hello. I shook my head, but Skippy said, "That's all right. I know you're there." I blinked. This was a creep! But I had to find out what was going on. I said, "You made a mistake, kid." "Running out?" He shrugged. "It's not the first mistake I made," he I said, "You can always quit," but then stopped. Because it was a lie. He couldn't quit—not until I found out how he read Chapo's cards through a drawn shade. kid me about Henry—I know. I'm not so sure about you, but it wouldn't surprise me." "What are you talking about?" "I can hear every word that's on Henry's mind," he said somberly. truth, I didn't think it was so goofy. The window shade was a lot goofier. "All my life," said Skippy, "I've been hearing the voices. It doesn't matter if they talk out loud or not. Most people I can hear, even when they don't want me to. Field glasses? I didn't need field glasses. I I said, "Prove it." The kid finished his coffee. "Well," he said, "you want to know what the counterman's got on his mind?" He leaned over and whispered to me. I yelled, "That's a lousy thing to say!" he said about Henry holding out on me made it real serious. I had to have more proof. But I didn't like Skippy's idea of proof. He offered to call off what everybody in the beanery was going to do next, barring three or four he and I knew his roulette wheel was gaffed. I walked right up to the wheel, and whispered to the kid, "Can you read the dealer?" He smiled The wheel spun, but that didn't stop the betting. Jake's hungry. In his place you can still bet for a few seconds after the wheel starts "Let's go," I said, and led the kid out of there. He was looking puzzled. "How come—" "How come I played to lose?" I patted his shoulder. "Sonny, you got a lot to learn. Jake's is no fair game. This was only a dry run." Henry came across. He even looked embarrassed. "I figured," he said, "Take your best shot," he said glumly. "But mark my words. You're not going to make out on your own." "I won't be on my own," I told him, and left him then. By myself? Not a chance! It was going to be Skippy and me, all the way. Not only could he read minds, but the capper was that he couldn't read mine! Otherwise, you can understand, I might not want him around all the time. But this way I had my own personal bug in every game in town, and I didn't even have to spend for batteries. Card games, gaffed wheels, everything. Down at the track he could follow the smart-money guys around and let me know what they knew, which was plenty. We could even And think of the fringe benefits! With Skippy giving the women a could hear. But everybody has got to like somebody, and I had the edge over most of the human race. He didn't know what I was thinking. And then, take away the voices in his head, and Skippy didn't have much left. He wasn't very smart. If he had half as much in the way of brains as he did in the way of private radar, he would have figured all these However, Henry had more brains than Skippy. I hadn't told Henry who tipped me off, but it didn't take him long to work out. After all, I had told him I was going out to look for Skippy, take much brains. All he had to do was come around to Skippy's place and give him a little lesson about talking. So when I walked in the door, Skippy was there, but he was out cold, with lumps on his forehead and a stupid grin on his face. I woke him up and he recognized me. But you don't make your TV set play better by kicking it. You don't help a fine Swiss watch by pounding it on an anvil. Skippy could walk and talk all right, but something was missing. "The voices!" he yelled, sitting up on the edge of the bed. I got a quick attack of cold fear. "Skippy! What's the matter? Don't you hear them any more?" He looked at me in a panic. "Oh, I hear them all right. But they're all Like I say, I'm a genius. Skippy wouldn't lie to me he's not smart enough. If he says he hears voices, he hears voices. Being a genius, my theory is that when Henry worked Skippy over, he jarred his tuning strips, or whatever it is, so now Skippy's receiving on another frequency. Make sense? I'm positive about it. He sticks to the same story, telling me about what he's hearing inside his head, and he's too stupid to make it all up. There are some parts of it I don't have all figured out yet, but I'll everybody knows there's only one. But I'll figure it out I have to, because I have to get Skippy back in business.

<question>:
How do the narrator and Henry continue their scam without getting caught?

<options>:
A They weren't too greedy, so the other players didn't suspect anything.
B They knew how to outsmart the people whom they played with.
C They are not very good at it, so there's really not much to suspect.
D The kid uses his powers to keep the others from suspecting them.

<answer>:

A