Derek is working on a thesis on the changes in social behavior in the context of finding partners. An important part of his study concerns the various practices followed by males and females over the course of generations and how they have gradually transformed into our current social norms. Derek can be called a(n) _______ psychologist.

A) personality
B) developmental
C) clinical
D) evolutionary

Evolutionary Psychologist

A professional in a branch of psychology that studies how evolutionary theory influences human behaviors, thoughts, and emotions.

Social Behavior

Involves interactions among individuals, ranging from cooperation and altruism to aggression, within a species.

Generations

Groups of people born and living around the same time, who experience and are shaped by particular societal events and cultural shifts.