The REASON a Person Is Being Paid $1 to Lie

The REASON a person is being paid $1 to lie changes her or his attitude more than the person who is being paid $50 to lie is that _____.

A) $1 was insufficient justification for arguing against a cause
B) $50 was overcompensation for arguing against a cause
C) doing what the experimenter wants should be reward enough without getting money
D) simply arguing against an attitude would not cause a change in that attitude