What should you do if your trailer brakes are not responding?

Answer: B — Pull over and conduct a thorough inspection

When trailer brakes are not responding, pulling over and conducting a thorough inspection is the most critical step to ensure safety. This action allows the driver to assess the situation directly, checking for potential issues such as air leaks, brake line problems, or malfunctioning brake components. It's essential to address the problem immediately to prevent further complications while on the road, which could lead to dangerous situations, including the risk of losing control of the vehicle. Continuing to drive and adjusting your speed does not resolve the underlying issue with the trailer brakes and can increase the risk of accidents. Contacting roadside assistance is a viable option but should typically follow an initial inspection to determine if the vehicle can be safely operated. Requesting help from another driver might be useful, but without an understanding of the problem, it may not be effective in identifying why the trailer brakes are not working. Thus, conducting a thorough inspection is the best initial response to ensure both safety and appropriate action.