Primary drives are caused by ________.

A) exceptions to the drive-reduction principle
B) learned behaviors
C) stimuli within the body
D) stimuli outside the body

Primary Drives

Basic physiological needs such as hunger, thirst, and sleep, which motivate behavior to ensure survival.

Stimuli

External factors or events that elicit a physiological or psychological response in an organism.

Drive-Reduction Principle

A theory suggesting that psychological needs create an aroused state that drives an organism to reduce that need by engaging in some behavior.