Your Text's Two Unifying Themes of "Our Behaviour Is Shaped

Your text's two unifying themes of "our behaviour is shaped by our cultural heritage" and "heredity and environment jointly influence behaviour" both describe more specialized statements of which other theme

A)  Psychology evolves in a sociohistorical context. 
B)  Psychology is theoretically diverse. 
C)  People's experience of the world is highly subjective. 
D)  Behaviour is determined by multiple causes.