Please keep me _____ what happens.

1. A.
   informing by
2. B.
   informing of
3. C.
   informed of
4. D.
   informed by

Please keep me _____ what happens.  

A. informing by            B. informing of             C. informed of      D. informed by

 Please keep me _____ what happens.  

A. informing by            B. informing of             C. informed of      D. informed by

 Please keep me _____ what happens.  

A. informing by              B. informing of             C. informed of      D. informed by

 Please keep me _____ what happens.