Which of Your Text's Unifying Themes Is Partly Illustrated by the Fact

Which of your text's unifying themes is partly illustrated by the fact that variations in cognitive style sometimes reflect the ecological demands of one's environment

A)  Psychology evolves in a sociohistorical context. 
B)  People's experience of the world is highly subjective. 
C)  Psychology is theoretically diverse. 
D)  Behaviour is shaped by our cultural heritage.