Which of the following theories of motivation is seen as the most comprehensive?

A) JCM theory
B) expectancy theory
C) equity theory
D) goal-setting theory

Answer: B
Explanation: Expectancy theory works best as a framework for combining all of the motivation theories in the chapter. JCM, equity theory, and goal-setting theory are all included in the combined overall scheme, but the structure for the scheme is provided by expectancy theory.