Tony showed me his new cell phone,  _______  was small but it could change colors in different weather.  

A. the screen of whom     B. whom the screen of

C. which the screen of      D. the screen of which

Tony showed me his new cell phone,  _______  was small but it could change colors in different weather.  

A. the screen of whom     B. whom the screen of

C. which the screen of      D. the screen of which

Tony showed me his new cell phone,  _______  was small but it could change colors in different weather.

1. A.
   the screen of whom
2. B.
   whom the screen of
3. C.
   which the screen of
4. D.
   the screen of which