The components of the 4-term contingency include:
a. discriminative stimulus, the behavior, the reinforcer, the consequence
b. motivating operation, discriminative stimulus, the behavior, the consequence
c. motivating operation, prompts, behavior, the consequence
d. motivating operation, discriminative stimulus, prompts, behavior

The correct option is B: Motivating operation, discriminative stimulus, the behavior, the consequence

Explanation:

A 4-term contingency is regarded as an important factor when trying to understand behavior and why that behavior was exhibited as identified in Grafton's philosophy. The Four terms include the behavior, Antecedents (also known as the discriminative stimulus), the consequences of the behavior, and the fourth piece which is sometimes forgotten; the motivation behind the behavior.

a few, because i should have plenty.

(because i need 20 chars)