—Would you mind staying in such a noisy room?—No but my son needs a place to study in.A.

问题补充：

—Would you mind staying in such a noisy room?

—No, but my son needs a place to study in.

A. cleaner B. quieter C. safer

答案：

解析：根据上文内容Would you mind staying in such a noisy room，可知答案为需要一个更安静的地方，故选答案为B