There was a murder in one of the poorest suburbs in the city the other day. Now the police are turning the whole house upside down __________ clues

1. A.
   in want of
2. B.
   in search of
3. C.
   in favor of
4. D.
   in need of

There was a murder in one of the poorest suburbs in the city the other day. Now the police are turning the whole house upside down __________ clues.

       A. in want of                B. in search of                     C. in favor of                D. in need of