Group Discussion Often Pushes People's Initial Individual Decisions to the Extreme,yielding

Group discussion often pushes people's initial individual decisions to the extreme,yielding group polarization.According to the persuasive arguments interpretation,this is because

A) individuals work to maintain the self-esteem of the rest of the group members.
B) others bring up perspectives or issues that the individual hadn't considered.
C) individuals bolster their initial beliefs when they make their case to others.
D) individuals are motivated to be accepted by other members of the group.
E) individuals work to reduce the dissonance aroused when other people disagree with them.