What is an essential step before starting a trip with a commercial vehicle?

Answer: B — Performing a pre-trip inspection

Performing a pre-trip inspection is a fundamental step before starting a trip with a commercial vehicle because it ensures that the vehicle is safe to operate and in proper working condition. This inspection involves checking critical systems and components such as brakes, lights, tires, steering, and fluid levels. By conducting a thorough pre-trip inspection, drivers can identify any potential mechanical issues that could lead to accidents or breakdowns during transit, thereby enhancing safety for themselves, other road users, and the cargo being transported. This step is crucial as it not only complies with legal regulations but also promotes responsible driving and maintenance practices in the commercial trucking industry. Ensuring that the vehicle is roadworthy before embarking on a journey mitigates risks and helps ensure a smoother, safer travel experience.