A psychologist would have the greatest difficulty differentiating between anger and fear by monitoring the ________ associated with each.

A) hormone secretions
B) finger temperatures
C) heart rates
D) brain activity

Hormone Secretions

The process by which hormones are released into the bloodstream by glands in the endocrine system to regulate various bodily functions.

Finger Temperatures

Measurements of the heat emitted from a person's fingers, often used in psychophysiological studies to assess stress or emotional states.