What should be inspected on belts during a vehicle check?

The correct answer focuses on inspecting belts for fraying, cuts, cracking, and gouges, which are critical indicators of the belt's overall condition and functionality. Belts play a vital role in a vehicle's operation, connecting various components such as the alternator, power steering pump, and air conditioning compressor.

When conducting an inspection, it's important to look for signs of wear and damage that could lead to belt failure. Fraying indicates that the material is wearing away, while cuts, cracking, and gouges can compromise the belt's integrity, leading to potential breakdowns or performance issues. Identifying these conditions early can help prevent more serious mechanical failures and ensure that the vehicle operates efficiently and reliably.

Other options, such as only checking the color or thickness, do not provide a comprehensive assessment of the belt's condition. The length of the belt may be relevant in specific contexts, but it is not as critical as visual inspection for physical damage when assessing functionality and safety. Thus, focusing on visible signs of deterioration is the most effective approach to maintaining vehicle performance and safety.