What is the purpose of a pre-trip inspection for commercial vehicles?

The purpose of a pre-trip inspection for commercial vehicles is to ensure that all systems are functioning properly. This thorough inspection is critical for identifying any mechanical issues, safety concerns, or required maintenance before beginning a trip. Ensuring that the vehicle's brakes, lights, steering, tires, and other essential systems are in good working order can prevent breakdowns and accidents on the road, enhancing safety for the driver, passengers, and other road users.

While familiarizing oneself with the route, adjusting mirrors and seat position, and checking passenger load are important aspects of preparing for a trip, they do not address the crucial safety and operational checks that a pre-trip inspection provides. The primary focus of this inspection is on the vehicle’s mechanical condition, making option B the most appropriate and relevant choice.