Physiological deals with body and behavioral deals with the internal mind.
Explanation:
Behavioral or behavioral psychology is a branch of psychology that focuses on the study and alteration of people's behaviors, including their actions, emotions, and thoughts.
Physiological refers to to the branch of biology that deals with the normal functions of living organisms and their parts. That means it deals with all body part's information and their function.
The purpose of the plasma membrane is to keep certain things and things out. So the correct answer to this questions is D, encloses specific structures.
