题目内容：
根据以下内容回答题，When I came to the United States, I didn't speak any English. When anyone asked me some-thing, I always said "Yes. " But I really didn't know what they were saying. Once I went to a large store to buy a mouse (鼠标) for my computer. When I got there, I was worried about the price. At last I found a cheap mouse. I checked the price to make sure of it before I went to the cashier. While I was at the cashier's, she asked me something. I said, "Yes," even though I didn't under-stand what she said. Then she told me what I had to pay. The price was different. I knew something was wrong. But I was afraid to say anything.
Later, at home, I thought about what the cashier said to me. What made the price go up? Then my husband came home. He looked at the receipt and found out what was wrong. The cashier's question was, "Would you like a one-year warranty(保修)?”and my answer was, "Yes.”
Since that day, I have never said "Yes" before I understand the question. And I have never paid more than the actual( 实际的)price.
The writer is studying in the United States. A．Right
B．Wrong
C．Doesn't say
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