Which statement is NOT one of your text's unifying themes related to the subject matter of psychology

A)  Psychology is theoretically consistent. 
B)  Heredity and environment jointly influence behaviour. 
C)  Behaviour is determined by multiple causes. 
D)  People's experience of the world is highly subjective.

Theoretically Consistent

Refers to a concept, idea, or hypothesis that aligns with the principles and assumptions of a particular theory or framework.

Heredity

The passing on of physical or mental characteristics genetically from one generation to another.

Behaviour

The actions or reactions of an individual or system in response to external or internal stimuli.