Which command structure is responsible for managing multiple units?

The command structure responsible for managing multiple units is a Group. In a military context, a Group typically consists of several smaller units, such as teams or squadrons, and provides higher-level oversight and coordination among them. This allows for better strategic planning and the efficient allocation of resources and personnel across the various units operating under its command.

A Platoon is a smaller unit, generally comprising a handful of squads, and is focused on tactical operations rather than overall management. A Mobile Unit often refers to a specific operational team or task force that is deployed for particular missions but does not encompass the broader organizational responsibilities that a Group has. A Company, while larger than a Platoon and often consisting of multiple Platoons, is still not as comprehensive in its command structure as a Group since a Group can manage multiple companies and other units simultaneously. Thus, the Group provides the necessary framework for coordinating diverse units and executing larger operational goals, making it the correct answer.