题目

    When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a small farm and it was very difficult for us to know what was happening outside the small farm, especially in the winter when we were quite cut off from the outside world. As soon as I left school, I packed my bags and moved to the capital. However, I soon discovered that city life has its own problems, too.     One big disadvantage is money. It costs so much to go out, not to mention basic needs like food and housing. Another disadvantage is pollution. I suffer from a 3．--________ is that quilt？-It's black．（　　）A．Which colorB．How colorC．What colorD．What's color