Which of the Following Would NOT Be Considered a Key

Which of the following would NOT be considered a key critique of the frustration-aggression theory of violence?

A) Violence can be attributed to structural and cultural factors rather than merely biological factors
B) Catharsis does not necessarily lead to the harmless expression of violence
C) Frustration is only one of many potential contributors to aggression
D) Neither frustration nor aggression is possible to accurately measure using scientific methodology