What does "hiring" mean in terms of vehicle maintenance?

In the context of vehicle maintenance, "hiring" typically refers to engaging a professional service to carry out inspections, repairs, or maintenance on vehicles. This could involve hiring a qualified mechanic or a service center that specializes in vehicle care. Such professionals bring the necessary expertise and tools to ensure that the vehicles are maintained properly, which is critical for safety and compliance with regulatory standards.

The other choices focus on different aspects of vehicle management or use. Buying new vehicle parts pertains specifically to obtaining components rather than addressing the overall maintenance process. Renting a vehicle for temporary use involves acquiring a vehicle rather than maintaining one. Employing a driver for transporting goods relates to staffing and logistics rather than vehicle upkeep. Hence, the emphasis on hiring a professional clearly aligns with the concept of vehicle maintenance.