What happens in the secured area of the airport?

The secured area of the airport is where significant activities related to passenger travel take place. It is designed to ensure the safety and security of both passengers and airport operations. In this area, passengers board flights and deplane upon arrival, which is a core function of the airport's operations. Additionally, baggage is sorted and loaded onto aircraft, making it a bustling hub of activity essential for the flight process.

While monitoring of flight operations and handling cargo may also occur in specific areas of the airport, these activities are not the primary functions of the secured area. Maintenance activities, although crucial for airport functionality, are typically conducted in designated maintenance zones rather than the secured area itself. Thus, A accurately captures the primary functions occurring in the secured area of the airport.