An Adult Female Rat Whose Ovaries Have Been Removed Will

Multiple Choice

An adult female rat whose ovaries have been removed will not copulate unless she receives injections of estrogen and progesterone. Similarly, removal of the testes in an adult male rat eventually eliminates copulatory behavior, unless he is given injections of testosterone. This suggests that the effects of these steroid hormones in these situations is

A) activational
B) organizational
C) reciprocal
D) relatively plastic