Orelieve dissonance, people will try to change so that attitudes, beliefs, and behavior will once again support one another. the subject their cognitions their values their actions

The correct answer is their cognitions.
People will try to change the way they think about a particular subject in order to resolve the problem of dissonance. They won't change their values, as that would be taking the matter too far. However, they can compromise and accept other people's opinions about something in order to achieve equilibrium again.