From the Behavioral Perspective, Which of the Following Statements Is

From the behavioral perspective, which of the following statements is true of aggression?

A) Unlike nonhumans, humans do not respond to physical reinforcements.
B) Strong, agile organisms are likely to be reinforced for aggressive behavior.
C) Aggressive skills can be learned through repressed impulses.
D) Aggressive skills are mainly acquired by observation of other people acting aggressively.