Most recovering heroin addicts seek to be free of drug dependency and others' prejudicial treatment as well.

(A) of drug dependency and others' prejudicial treatment as well.
(B) both of drug dependency and also of prejudicial treatment.
(C) both of drug dependency and also from prejudicial treatment.
(D) both of drug dependency but also from prejudicial treatment.
(E) both of drug dependency and of prejudicial treatment as well.


The Key says that the answer is E

but both and as well kind of sound redundant to me (i chose A for that reason)