What Do Social Loafing and Decision Polarization Have in Common

What do social loafing and decision polarization have in common?

A) Both are examples of how individuals and groups of people behave differently within larger groups than they would behave as individuals.
B) Both effects show how individualism will lead people to not make an effort in large groups.
C) Both effects show how individualism is maintained even within groups that exert considerable peer pressure.
D) Group decisions become more extreme, so that individuals who are naturally lazy become even more so.
E) Some people do not pay their "fair share" and this causes groups to polarize into smaller groups.