TOEFL Listening: ETS-TOEFL听力机经 - 9H105B1IK535X105P$

What do the speakers imply about the largest of the three alpha male chimpanzees in the study? A. He was not successful in reducing conflict within the group. B. He did not face challenges to his dominant position. C. He did not have to use grooming as a way of gaining dominance. D. He was most aggressive toward male chimpanzees that were being groomed.