In the Induced Hypocrisy Paradigm,participants

In the induced hypocrisy paradigm,participants:

A) advocate an opinion they already believe in,and then are reminded of a time when their actions contradicted that opinion.
B) are assigned tasks of varying unpleasantness in order to gain entrance to a group,and their opinions about the group are assessed.
C) are made to feel that they have freely chosen to undertake a counterattitudinal behavior.
D) are given the smallest external justification necessary to prevent them from engaging in an undesirable behavior.