I can think of many cases ______ students can’t write a good article though having a large vocabulary.

I can think of many cases ______ students can’t write a good article though having a large vocabulary

1. A.
   where
2. B.
   which
3. C.
   that
4. D.
   to which

I can think of many cases ______ students can’t write a good article though having a large vocabulary.

A. where               B. which                      C. that                          D. to which

I can think of many cases ______ students can’t write a good article though having a large vocabulary.