How many personnel are required to emplace the SENTINEL?

The correct answer regarding the personnel required to emplace the SENTINEL is that two individuals are necessary for the procedure. The emplacement of the SENTINEL, which is a key component in the air defense battle management system, involves physical tasks such as setting up the radar system, connecting power and communication lines, and ensuring the system is operational and calibrated. Having two personnel allows for efficient handling of the equipment, with one person managing the setup while the other assists in coordinating the necessary actions, leading to faster and safer deployment.

The requirement for only one person would be insufficient since it is vital to have support during the setup process, especially given the complexity and specificity of the tasks involved. Similarly, three or four personnel, while potentially capable of completing the task, are not necessary, as two trained individuals can effectively handle the emplacement duties without being unwieldy or excessive. This efficiency in manpower is crucial in field operations where resources must be optimized.