Estrogens and Androgens Are Both Types of Activational Hormones Released

Estrogens and androgens are both types of activational hormones released by glands or cells in the human body. Which of the following statements best describes their relationship to sex differences?

A) Androgens are only found in male bodies, while estrogens are only found in female bodies.
B) Differing hormone levels explain the majority of sex differences in male and female behavior.
C) Testosterone only has observable effects in male bodies.
D) Hormones have been linked to only a few of the differences between males and females.