That athletes experience a range of symptoms from taking
anabolic steroids is due to:

A. the fact that athletes are different than average humans and
in average humans only a single mild response would be
observed.

B. the fact that the hormone interacts with environmental
chemicals to change its form into different hormones that affect
different organs.

C. the fact that the hormone primarily affects the brain and
induces a range of behavioral changes.

D. the fact that the hormone induces different responses in
different organs of the body.