The most complex of all sensory systems is:

Heuristics are relevant when we try to answer a reasoning problem because

a. we carefully assess the logic behind each reasoning problem, rather than responding quickly. b. we often answer a reasoning problem by using a heuristic that a conclusion is a "good bet," even if it is not always true. c. we are especially accurate on reasoning problems that involve "affirming the consequent." d. we are significantly more accurate if we try decision-making strategies in trying to solve reasoning problems.

Carl Jung called the collective unconscious shared by the entire human species throughout history ______.

A) archetypes B) mutual complexes C) psychodramas D) social ethers