Jenna Constantly Experiences Feelings of Hopelessness and Worthlessness

Jenna constantly experiences feelings of hopelessness and worthlessness.Jenna's doctor,Jacob,advises her to start taking anti-depressant drugs that contain serotonin and dopamine.According to Dr.Jacob's diagnosis,Jenna's depression is a result of the imbalance and improper functioning of the neurotransmitters in her brain.In the context of the theoretical approaches to psychological disorders,this diagnosis conforms to the

A) sociocultural approach.
B) biological approach.
C) psychological approach.
D) social cognitive approach.