What components comprise the aircraft wheel assembly?

The aircraft wheel assembly is a crucial component of an aircraft's landing gear system, designed to support the weight of the aircraft during landing, ground operations, and takeoff. The comprehensive structure includes not only the wheel and tire but also essential components such as wheel bearings and seals.

The wheel acts as the structural component that supports the tire and allows for rolling motion. The tire provides the necessary grip on the runway and absorbs shocks during landing. Wheel bearings are critical for enabling smooth rotation of the wheel around the axle, reducing friction and wear. Seals are important for keeping contaminants out and retaining lubrication within the bearings, which extends their life and ensures safe operation.

This combination of components ensures reliability, safety, and optimal performance of the aircraft's landing gear system during various phases of flight and while maneuvering on the ground. Therefore, the correct answer highlights the complete assembly that is essential for proper functionality and safety in aviation.