Identify the passage that contains a sentence fragment. a. vervets do not have the intellectual capacity of humans. however, their communities often run more smoothly than those inhabited by humans. b. vervets identify themselves according to family, community, and social rank. their behavior is clearly governed by a sense of social relationships. c. vervets define themselves in terms of their relationships to others. in this way, they are much like humans. d. the members of vervet monkey groups live in a social hierarchy. similar to that found in human groups, which also exhibit social hierarchies.