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

<passage>:
So I started going through the purse of the woman next to me. Perhaps But I never say anything. I learned the wisdom of keeping my mouth shut in the fourth grade when Miss Winters, a stern, white-haired disciplinarian, ordered me to eat my sack lunch in the classroom with her instead of outside with some Class had hardly resumed when she started looking around the desk for she was out of the room, so I probed the contents of her purse, which "It's in your purse," I blurted out. because I had to catch the seven o'clock plane at San Francisco Soon the stewardesses would bring coffee and doughnuts around, so I luggage to another, looking for my beat-up suitcase. I went through I never did find my suitcase because I found the bomb first. The bomb was in a small bag—a woman's bag judging by the soft, flimsy things you'd never find in a man's—and I didn't know it was a bomb right away. I thought it was just a clock, one of those small, alarm clock, this one had something like ten minutes to go. But of course that had been the plan! My heart was beating in jackhammer rhythm my mouth was dry and my mind I goggled at her, managed to croak, "No, thanks." She gave me an odd look and moved along. My seatmate had accepted hers and was tearing at the cellophane. I couldn't bear to watch her. I closed my eyes, forced my mind back to the luggage compartment, spent a frantic moment before I found the bag again. I had to stop that when it went back, I pulled it forward. I struggled with it, and it was like trying to work with greasy hands, and I was afraid I wasn't going to be able to stop it. Then, little by little, it started to slow its beat. But I could not afford to relax. I pushed and pulled and didn't dare release my hold until it came to a dead stop. the landing. When they unloaded the luggage, the balance wheel would start again. I wouldn't be able to stay with it, keeping it still. Maybe I could convince them I could stop a clock—but not before the bomb exploded. And then what? My secret would be out and my life would be changed. I'd be a man not to be trusted, a prying man, a man Leaving the apron with the other passengers, I tried to walk as unconcernedly as they through the exit gate. I would have liked walking through the terminal and out the entrance and away, but I could not. I had my suitcase to get, for one thing. The damned bomb was the other. watch the baggagemen at work, transferring the luggage to two airfield It was impossible to tell from this distance just which bag contained I could hardly identify my own scarred suitcase. The packed in some places six deep, and it rolled toward the gate where I was standing. I didn't know whether to stay or run, imagining the and placed in a long rack. I went with it. There was a flurry of ticket matching, hands grabbing for suitcases, and a general exodus on the part of my fellow passengers, too fast to determine who had got the one with the bomb. Now all that was left was the attendant and I had two bags—my own battered veteran of years, and clock. The escapement was clicking vigorously. I didn't moan this time. I just closed my eyes, stretched toward and grabbed the balance wheel I was getting to know like my own. I entered into a union with it so strong that after I had reduced it to and put my suitcase on the stone steps there. A redcap came hurrying Just waiting for somebody to pick up a bomb. claim area. The red bag was still there. All sorts of theories ran I do? If I left the airport, the attendant would eventually take the bag inside and there would be an explosion, and I wouldn't be able to live with myself. No. I had to stay to keep the balance wheel stationary until—until what? A man in tan gabardine, wearing a police cap and badge, walked out of tell him. I could take him down to the little red bag and explain the whole thing. Then it would be his baby and I would be off on my own business. But he moved on down the steps, nodded at the redcap, and started "Hey, officer, let me tell you about a bomb in a little red bag." But I didn't. I didn't because I caught a movement at the baggage claim The attendant had picked up the bag and was walking with it up the ramp to the rear of the air terminal. Picking up my own suitcase, I went inside in time to see him enter through a side door and deposit the bag I could visualize the balance wheel once again rocking like crazy. How many minutes—or seconds—were left? I was sweating when I moved to the counter, and it wasn't because of the sunshine I'd been soaking in. I had to get as close to the bag as I could if I was going to stop the "No. I'm waiting for someone." I turned my back to him, put down my suitcase, leaned against the counter and reached out for the wheel. I found I could reach the device, but it was far away. When I tried to dampen it, the wheel escaped my grasp. "Do you have my suitcase?" glanced at me indifferently, and then started for the entrance with it. "Just a moment," I found myself saying, grabbing my bag and hurrying At her side and a little ahead of her, I said, "Listen to me." She looked annoyed and increased her stride toward the door. "It's a matter of life or death," I said. I wanted to wrest the bag from her and hurl it out through the doorway into the street, but I restrained myself. She stopped and stared. I noticed a short, fat man in a rumpled suitcoat and unpressed pants staring, too. Ignoring him, I said, "Please put the bag down. Over there." I indicated a spot beside a range it wasn't difficult to stop the balance wheel. Just the same, when I came out I was wringing wet. She glanced at the bags. I told her they'd be all right. We followed the short, fat man into the coffee shop. there when I finished. I asked her who put the bomb in her bag. must have put the—put it in there." I said gently, "Why would he want to do a thing like that?" "I don't know." She shook her head. "I just don't know." And she was bomb in her bag, that she had noticed a ticking and had become worried because she knew she hadn't packed a clock. It wasn't good, but it would have to do. I asked her why she didn't claim the bag at the same time the other The two bags weren't there. I ran to the entrance and nearly collided with the redcap. "See anybody go out of here with a little red bag and an old battered suitcase?" "Bag? Suitcase?" he mumbled. Then he became excited. "Why, a man just stepped out of here—" He turned to look down the street. "That's him." The dumpy man I'd seen was walking off Julia's bag in his right hand, mine in his left. He seemed in no hurry. "Hey!" I shouted, starting toward him. The man turned, took one look at me, and started to run. He came abreast an old gray, mud-spattered coupe, ran around, opened the door and threw both bags into the rear seat as he got in. The car was a hundred feet away and gathering speed by the time I reached where it had been parked. I watched it for a moment, then redcap, who said, "That man steal them suitcases?" Just then the airport policeman started across the street from the parking lot. Redcap said, "Better tell him about it." But we never left the spot because an explosion some blocks distant

<question>:
Why did the dumpy man not start running when he picked up the suitcases?

<options>:
A He knew there was a bomb and didn't want to jostle it before he retrieved the other contents
B He didn't know there was a bomb so he had no reason to rush
C He didn't want to arouse suspicion unless he was spotted
D He was too big to be able to move quickly

<answer>:

C