She still remembers the days ______ she was in the country ______ she was young.

She still remembers the days ______ she was in the country ______ she was young.

A.as; that

B.which; when

C.when; as

D.during which; that

答案及解析： C

解析：

when引导定语从句，as表示“当……的时候”。