Which of the following is NOT included in your textbook's definition of psychology

A)  Psychology is a profession that solves practical problems. 
B)  Psychology is a science. 
C)  Psychology studies behaviour including physiological and cognitive processes. 
D)  Psychology primarily studies the unconscious mind.

Textbook's Definition

The explanation or description of a concept as given in a textbook, often considered a standard or authoritative source.

Unconscious Mind

The part of the mind that is inaccessible to the conscious mind but that affects behavior and emotions.

Profession

A paid occupation, especially one that involves prolonged training and a formal qualification.