Why Do People Often Experience Postdecision Dissonance

Multiple Choice

Why do people often experience postdecision dissonance?

A) They are motivated to believe in a just world.
B) Almost every alternative has both an upside and a downside, and people feel uncomfortable.
C) People fear that indecision will be evaluated negatively by others.
D) It's easier to value an option we've chosen than to disparage an option we've rejected.