Bart Complied with His Friends' Request to Join Them in Smashing

Bart complied with his friends' request to join them in smashing decorative pumpkins early one Halloween evening. Later that night, he was surprised by his own failure to resist their pressures to throw eggs at passing police cars. Bart's experience best illustrates the

A) bystander effect.
B) foot-in-the-door phenomenon.
C) fundamental attribution error.
D) frustration-aggression principle.