Answer: B. A group is the sum of the behavior of all of the group members.
Explanation: While a group is meant to function as one entity, each individual in the group will definitely have distinct characters. Every member of the group cannot behave in the same manner. However, to function as a group, each individual must be willing to forgo some of their behaviors (that may not fit into the group’s ambitions) to ensure that the group succeeds. The sum behavior of each member of the group will most likely determine how successful the group will be. Among the options above, option B gives the most suitable description because, in a group, each member should have something to offer — they cannot depend upon the most influential individual all the time.