Which of the following components is part of the G1000 GIA?

The G1000 GIA, or the GPS Integrated Avionics unit, is a key component of the Garmin G1000 system, which integrates various navigation and communication functions into a single unit. The VHF Nav/Loc receiver is a critical part of this system, allowing the aircraft to receive Very High Frequency navigation signals, which are essential for instrument approaches and navigation. This capability is integral to the G1000's functionality, as it supports the aircraft's ability to navigate using various predefined routes and procedures.

The other options listed, such as the flaps system, elevator control, and landing gear system, pertain to the aircraft's flight control and mechanical systems but do not coincide with the functions of the G1000 GIA. These elements are managed separately from the avionics systems that handle navigation and communication. Understanding that the GIA's primary role is to manage navigation signals and data helps clarify why the VHF Nav/Loc is the correct component associated with it.