Group polarization...
a. occurs when one or more group members feel pressured to conform to the group's decision even if they personally disagree.
b. occurs when two or more groups interact with one another on an informal basis.
c. is when a group is more likely to move toward a more extreme position than members might have done individually.
d. assigns each team member as a "critical evaluator" with the responsibility to express opinions and objections freely.
e. sets up a number of independent groups to work on opposing sides of an issue.