Some young people in America are expected to leave could be life’s most important decisio

问题补充：

Some young people in America are expected to leave could be life’s most important decision---marriage--- entirely up to luck.

A. which

B. that

C. what

D. as

答案：

A. which

B. that

(答案→)C. what

D. as

解析：考查名词性从句。What引导宾语从句，在从句中作主语，故选C。