Regarding Research on the Effects of Sexual Arousal and Testosterone

Regarding research on the effects of sexual arousal and testosterone levels on behavior, which of the following statements is FALSE?

A) Most men, including those with high testosterone levels, manage to keep their sexual impulses and aggressiveness within acceptable limits.
B) Testosterone supplements can help men with low testosterone levels to think more clearly.
C) In a study, men correctly predicted that being sexually aroused would influence their sexual choices.
D) Older men with too little testosterone have a greater risk of developing dementia.