Research on the Relationship Between Testosterone Level and Competition Suggests

Research on the relationship between testosterone level and competition suggests that

A) aggression may raise testosterone levels rather than testosterone producing aggression.
B) individuals who are competitive have higher testosterone levels than those who are less competitive.
C) men whose occupations require high levels of competition, like athletes and salesmen, have higher levels of testosterone than men in less competitive professions, like actors and ministers.
D) men whose testosterone levels are high are actually significantly less aggressive than men with low or medium levels of testosterone.