One Side Effect of Anabolic Steroids to Increase Muscle Bulk

Multiple Choice

One side effect of anabolic steroids to increase muscle bulk is that the testes shrink. Since the testes also produce testosterone, what is the likely mechanism for this shrinkage?

A) The anterior pituitary assumes overproduction and drops the level of hormones that cause the testes to develop.
B) Artificial testosterone causes a negative feedback to the anterior pituitary that in turn tries to stimulate ovary development.
C) Testosterone has a negative feedback effect directly on testes.
D) Artificial testosterone is toxic to testicular cells.
E) Excess testosterone actually backfires and reverses the effects of puberty.