When report came into London Zoo ________ a wild lion had been spotted forty-five miles south of London, they did not take it seriously．

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

 When report came into London Zoo ______ a wild lion had been spotted forty-five miles south of London, they did not take it seriously.  

A. which        B. where        C. that            D and