What should pilots do with their passengers according to TSA guidelines for General Aviation?

Pilots are encouraged to "know their passengers" as part of TSA guidelines for General Aviation to enhance safety and security on flights. This involves being familiar with the backgrounds and behavior of individuals they are taking onboard. By knowing their passengers, pilots can identify any potential risks and ensure that everyone aboard is safe.

This awareness helps pilots make informed decisions regarding who to allow on board, especially in an environment where security protocols may differ from commercial aviation. Trusting relationships between pilots and their passengers can lead to better communication and vigilance during the flight.

The other options do not capture the essence of TSA guidelines as effectively as knowing the passengers does. Background checks, while important in certain contexts, are not a practical requirement for general aviation pilots regarding every passenger. Keeping passengers restrained may apply during specific phases of flight but does not directly pertain to the broader responsibilities of awareness or relationship between pilots and their passengers. Limiting interactions does not support a culture of communication and safety that is encouraged within general aviation practices.