Which of the Following Best Describes the Dialectic Method of Managing

Which of the following best describes the dialectic method of managing group decision making?

A) A group intentionally makes negative arguments to force investigation of the idea under consideration.
B) A group holds a structured debate about two conflicting courses of action.
C) Conflict generated within the group is minimized by enforcing group unity.
D) Group conflict is maximized by including both factual counterarguments and personal attacks.
E) The leader performs the role of peacekeeper when attacks are directed at individuals.