Which of the Following Statements About Testosterone Is True

Multiple Choice

Which of the following statements about testosterone is true?

A) The relationship between sexual activity and testosterone levels could be explained by the fact that sexual activity itself increases testosterone levels.
B) The effect of castration on sexual behavior takes longer in rats than in humans.
C) Castration of aggressive human prisoners is a common procedure that is effective in about 50% of cases.
D) Males with low testosterone levels cannot be as sexually active as other males.