Passenger Operations is responsible for planning and controlling which of the following?

Passenger Operations primarily focuses on the various activities that ensure a smooth travel experience for passengers. This includes everything from the check-in process to boarding the aircraft, in-flight services, and customer support. Proper planning and control in these areas are crucial to enhance passenger satisfaction and operational efficiency in air travel.

The reason why passenger service activities are the correct choice is that they encompass the direct interactions and services provided to passengers throughout their journey. This includes coordinating ticketing, managing boarding procedures, and addressing passenger inquiries or issues as they arise. Ensuring that these activities are well-organized is vital to maintaining a seamless flow of operations and providing a positive experience for passengers.

In contrast, other options like cargo operations are focused on the transportation and handling of freight, which falls under a different area of air transportation logistics. Airframe maintenance deals specifically with the upkeep and repair of the aircraft structure, ensuring safety and airworthiness, rather than passenger service. Flight scheduling involves creating and managing the timetable for flights, which, while important, does not directly pertain to the range of services provided to passengers.