Elise Richards was one of the first musicians to consider slavery to be a legitimate subject for music and portray its horrific status in the society.
A. to be a legitimate subject for music and
B. should be a legitimate subject for music and
C. as being a legitimate subject for music and
D. as if she was a legitimate subject for music and
E. a legitimate subject for music and to
OA is [spoiler]E[/spoiler]
Whether the use of 'to' is right in E