Results from the Experiment in Which Subjects Drank Alcohol, Coffee

Results from the experiment in which subjects drank alcohol, coffee or water after writing a counter-attitudinal essay suggest that:

A) if you want to change people's attitudes, give them alcohol
B) cognitive dissonance is not a factor in attitude change
C) cognitive dissonance is an intellectual awareness of inconsistency
D) the state of cognitive dissonance which leads to attitude change is a state of arousal
E) self-perception theory is better than cognitive dissonance in accounting for attitude change