she didn't know—— she would go there?A、what B、who C、if D、where

she didn't know—— she would go there?A、what B、who C、if D、where

C
她不知道她 是否 要去那儿.
人,时间,地点都齐全,所以ABD都不对
请及时采纳,多谢!

填if，句意是她不知道她是否应该去那儿。