Final answer:
The P3T coordinator is responsible for keeping the command informed about P3T, conducting briefings, and liaising with installation leadership, not the physical therapist. Option D is correct.
Step-by-step explanation:
The individual responsible for keeping the command informed about P3T, conducting briefings on it, and performing liaison activities with the installation leadership is the d) P3T coordinator. The role of a Physical Therapist (PT) is primarily focused on treating patients with muscle or joint injuries after they've been referred by their regular doctor.
PTs have extensive education, usually a master's degree or doctorate, and are experts in the mechanics of body movements, often specializing in sports injuries. However, when it comes to administrative and informational duties such as informing command about P3T, conducting briefings, and liaising, these are typically handled by the P3T coordinator.