People who are paid a small amount of money for defending a point of view different from their own generally change their opinion more than those who are paid a large amount. One likely explanation is

A) bystander apathy.
B) attributional bias.
C) cognitive dissonance.
D) group polarization.

This phenomenon is called cognitive dissonance, where individuals experience discomfort when their attitudes and behaviors are inconsistent. By paying them a small amount of money to advocate for a different viewpoint, they experience dissonance between their true beliefs and their expressed opinions, causing them to change their attitudes to match their behavior. Those paid a large amount may not experience as much dissonance and therefore, do not change their attitudes as easily.