In a double-blind procedure, one group of men is given a beverage containing alcohol and a second group is given a similar-tasting beverage that contains no alcohol. In each group, half the men are told they are drinking an alcoholic beverage and half are told their beverage is nonalcoholic. All the men then view erotic movies. After watching the erotic material, research indicates that:

a. the men who thought they were drinking alcohol will feel LESS guilty than those who did NOT think they were drinking alcohol, regardless of the true content of the beverage.
b. the men who drank the alcohol will feel guilty, regardless of whether they thought they were drinking alcohol.
c. all of the men will feel the same amount of guilt.
d. the men who did NOT drink alcohol will NOT feel guilty, regardless of whether they thought they were drinking alcohol.