They cancelled all flights because of fog. A.All flights was cancelled by them because of fog. B.All flights because of fog were cancelled. C.All flights were because of fog cancelled. D.All flights were cancelled because of fog.

They cancelled all flights because of fog.
 

A.All flights was cancelled by them because of fog.
 

B.All flights because of fog were cancelled.
 

C.All flights were because of fog cancelled.
 

D.All flights were cancelled because of fog.