Phillips' Study of the Correlation Between the Occurrence of a Prizefight

Phillips' study of the correlation between the occurrence of a prizefight and homicides found that after a prizefight:

A) homicides increased significantly, with the greatest number of homicides occurring three days after the prizefight.
B) homicides decreased significantly, demonstrating the catharsis effect.
C) homicides increased significantly, with the greatest number of homicides occurring with the first three hours after the prizefight.
D) homicides increased only if the "underdog" won the fight.