Which three components are key to inspect during a pre-trip inspection?

The key components to inspect during a pre-trip inspection are tires, brakes, and lights. These elements are critical for ensuring the safe operation of a vehicle.

Tires are essential because they are the only contact point between the vehicle and the road. Inspecting tires involves checking for proper inflation, tread depth, and signs of wear or damage, which are all vital for maintaining traction and stability.

Brakes are crucial for safety since they allow the driver to stop the vehicle effectively. A pre-trip inspection should include checking the function of the brake system, looking for leaks in the brake lines, and ensuring the brake pads are in good condition.

Lights are important for visibility and communication with other road users. Ensuring that all lights, including headlights, taillights, and turn signals, function properly helps prevent accidents and alerts others to your intentions on the road.

While the other options suggest inspecting important systems and components, they don't prioritize among the most critical safety aspects of vehicle operation as clearly as the combination of tires, brakes, and lights does in a pre-trip inspection.