【正确答案】 C

【答案解析】“疑问词+不定式”在句中做宾语。例如：It does not take much strength to dothings，but it requires great strength to decide on what to do．做事并不太费劲，可是决定做什么却要费很大的劲。The art of being wise is the art of knowing what to overlook．智慧的艺术就是懂得该宽容什么。