There Are Multiple Theories About the Mechanisms and Function of Hypnosis,and

There are multiple theories about the mechanisms and function of hypnosis,and each of these theories provides important perspectives on the topic.Which of the unifying themes of psychology is reflected in this example

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