+1 for
D.
(A) The average American may not
think of sexual harassment
to be -->
"as" is preferred to "to be" when the sentence construct is active(B) The average American may not
think of sexual harassment
being(C) An average American may not
think of sexual harassment
being(D) The average American may not
think of sexual harassment
as -->
Correct, rectifies idiom and voice error(E) Sexual harassment may not be
thought of by the average American
as Hence,
D.
_________________
The few, the fearless !
Thanks