In the First Half of the 20th Century,a Strong Current

In the first half of the 20th century,a strong current of racial and class prejudice supported the idea that IQ tests measured innate ability and that "undesirable" groups scored poorly because of their genetic inferiority.Which theme of your text does this development best reflect

A)  Psychology evolves in a sociocultural context. 
B)  Behaviour is determined by multiple causes. 
C)  Psychology is theoretically diverse. 
D)  Psychology is empirical.