Each of the following: good/bad child,understanding/strict parent,logical/emotional,role model/rebel are examples of ___________________.

A) hierarchies
B) complementary roles
C) coalitions
D) subsystems

These are all examples of complementary roles, where one role complements or contrasts with another. A good child is complementary to a strict parent, a logical person complements an emotional person, and a role model contrasts with a rebel. Hierarchy refers to levels of authority, coalitions refer to groups that join together for a common purpose, and subsystems refer to smaller systems within a larger system.