Sentence Correction (SC) | Re: Unlike the automobile company, whose research was based on crashes

Unlike the automobile company, whose research was basedon crashes involving sport utility vehicles, the research conducted by the insurance company took into account such factors as a driver's age, sex, and previous driving record.

(A) company, whose research was based on
(B) company, which researched
(C) company, in its research of
(D) company's research, having been based on
(E) company's researchon