Of all the record companies involved in early jazz, the three most prominent were Columbia, Victor, and OKeh.

A. Of all the record companies involved in early jazz, the three most prominent were Columbia, Victor, and OKeh.
B. Three most prominent record companies of all the ones that were involved in early jazz were Columbia, Victor, and OKeh.
C. Columbia, Victor, and OKeh were, of all the record companies involved in early jazz, the three of them that were most prominent.
D. Columbia, Victor, and OKeh were three most prominent of all the record companies involved in early jazz.
E. Out of all the record companies that were involved in early jazz, three of them that were the most prominent were Columbia, Victor, and OKeh


I though the correct answer would be D , since in general, one should avoid relative clause constructions when simple adjectives can express the same idea more simply.

But the OG guide says, A for the same reasons that I applied to delibrate the Answer as D. Pls share your thought .