Many Parenting Books,dog Training Manuals,and Business Management Approaches All Advocate

Many parenting books,dog training manuals,and business management approaches all advocate the use of operant conditioning techniques to encourage desirable behaviour in children,pets,and employees.Which unifying theme in psychology is reflected by the widespread knowledge of and application of conditioning techniques

A)  Heredity and environment jointly influence behaviour. 
B)  Behaviour is determined by multiple causes. 
C)  Psychology evolves in a sociohistorical context. 
D)  Our behaviour is shaped by our cultural heritage.