In Carré and colleagues' (2010) study of the testosterone levels of men who played a competitive computer game, which men showed an increase in testosterone?

A) Men who were provoked and for whom aggression was rewarding.
B) Men who were provoked and for whom aggression was costly.
C) Men who were unprovoked and for whom aggression was rewarding.
D) Men who were unprovoked and for whom aggression was costly.
E) Men who chose to help the experimenter rather than play another computer game.

B) Men who were provoked and for whom aggression was costly.