根据材料内容，选择正确答案。
A few minutes ago, walking back from lunch, I started to cross the street when I heard the sound of a coin dropping. As I turned, my eyes caught the heads of several other people turning, too.
The sound of a coin dropping on the ground is an attention-getter. Whatever the coin is, no one ignores(忽视) the sound of it. It got me thinking about sounds again.
We are circled by so many sounds that attract the most attention. People in New York City seldom turn to look when a police car comes ringing along the street.
When I'm in New York, I'm a New Yorker. I don't turn either.
At home in my little town in Connecticut(康涅狄格州), it's different. The distant ringing of a police car brings me to my feet if I'm in bed.
It's the quietest sounds that the most effect on us, not the loudest. In the middle of the night, I can hear a dripping tap a hundred yards away though three closed doors. How come I never hear the sounds in the daytime?
I'm quite clear in my mind what the good sounds are and what the bad sounds are.
I've turned against whistling(吹口哨), for instance. I used to think of it as the mark of a happy worker. But lately, I've been connecting the whistler with a nervous person making noise.
The tapping(轻敲) of my typewriter as the keys hit the paper is a lovely sound tome. I often like the sound of what l write better than the looks of it. But whatever sounds there will be, and whether we love them or not, we can't break away from them in our life.