In the Induced Hypocrisy Paradigm

In the induced hypocrisy paradigm:

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