GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - 2L3526D3IWOWEXCTJ

It can be inferred from the passage that the establishment and preservation of social order among a group of monkeys is essential in order to A. keep the monkeys from straying and joining other groups B. control aggressive behavior among group members C. prevent the domination of that group by another D. protect individuals seeking to become members of that group from mass attack E. prevent aggressive competition for incentives between that group and another