Which of the following is considered a mission-sustaining facility funded by Facility Category A?

The correct answer is fitness centers, which are categorized as mission-sustaining facilities under Facility Category A. These facilities play a crucial role in supporting the overall readiness and well-being of military personnel. Fitness centers provide essential services that promote physical fitness and wellness, which are vital for maintaining the health and operational effectiveness of service members.

In the context of military operations, the health of personnel is directly tied to mission success, making fitness centers significant in supporting the physical readiness of troops. They often offer various programs and services, including exercise classes, personal training, and equipment availability, all aimed at enhancing the fitness levels of military members.

Control towers, while essential for air traffic management and safety, do not directly fall under the mission-sustaining facilities that cater primarily to personnel well-being. Residential quarters are focused on providing housing rather than operational support. Vehicle maintenance shops, although necessary for vehicle readiness, serve a more logistical function and are not categorized as mission-sustaining facilities in the same vein as fitness centers, which focus directly on the health and welfare of individual service members.