Monica is asked to babysit her siblings while her mother goes to work. Monica agrees to the task, but thinks "I didn't have the kids, so I shouldn't have to watch them" Her attitude towards watching her siblings changes when she realizes that her mom works so they can eat and have a safe place to live. Monica's irritation subsides and her thoughts now match her actions. This is an example of
A) bystander effect
B) cognitive dissonance theory
C) scapegoat theory
D) social influence theory
E) groupthink
Answer: B