In the garden there are a lot of flowers ______ I don’t know the names.

In the garden there are a lot of flowers ______ I don’t know the names.

1. A.
   of which
2. B.
   from which
3. C.
   to which
4. D.
   about which

In the garden there are a lot of flowers ______ I don’t know the names.

  A. of which B. from which              C. to which   D. about which

In the garden there are a lot of flowers ______ I don’t know the names.

   A. of which      B. from which              C. to which     D. about which

In the garden there are a lot of flowers ______ I don’t know the names.

   A. of which          B. from which           C. to which       D. about which