Research examining children’s behavior after watching an episode of Power Rangers found

a. no differences in level of aggressiveness between children who did or did not watch Power Rangers.

b. differences in level of aggressiveness between children who did or did not watch Power Rangers, but only for children who were initially classified as highly aggressive.

c. differences in level of aggressiveness between children who did or did not watch Power Rangers, butonly for children who were initially classified as low in aggressiveness.

d. differences in level of aggressiveness between children who did or did not watch Power Rangers, for boys but not for girls.