The Various Approaches to Psychotherapy Differ in Their Treatment Approach,in

The various approaches to psychotherapy differ in their treatment approach,in part because they have different opinions concerning the factors that contribute to the development of psychological disorders.Which unifying theme in psychology is reflected by this example

A)  Psychology is empirical. 
B)  Psychology is theoretically diverse. 
C)  Behaviour is shaped by cultural heritage. 
D)  Psychology evolves in a sociohistorical context.