Dr. Winecki is a psychologist who studies aggression. In a research article, he discusses how psychologists have struggled to categorize aggression in contact and combat sports. Dr. Winecki shares that the consensus among social psychologists is that sports like boxing, football, and mixed martial arts can best be classified as:

A) instrumental aggression.
B) adversarial aggression.
C) competitive aggression.
D) combative aggression.