When the CEO of an organization redesigns the organizational chart to define different reporting relationships among the organization's managers, she is essentially creating groups.

The correct answer is: command groups.

Explanation:

Formal groups are created by the organization and are intentionally designed to direct members towards an important objective of the organization. A type of formal group is referred to as a group of commands (that is, those that can legitimately give orders to others). Formal organization group can also be formed around a specific task. This group is known as a task group. Unlike command groups, a work group can be made up of people with some special interest or experience in a given area, regardless of their positions in the hierarchy of the organization. It consists of managers, subordinates, or both, with close relationships between group members that influence the behavior of individuals in the group.

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