When should cargo be inspected during a trip?

Answer: C — Within the first 50 miles after beginning the trip

The correct answer is that cargo should be inspected within the first 50 miles after beginning the trip. This step is vital because it allows the driver to ensure that the cargo is secure and properly placed in the vehicle before continuing on a longer journey. Conducting this inspection early in the trip helps catch any potential issues that could affect safety, ensuring that the load has not shifted during transport and is not causing any hazards. The other options suggest inspection timings that are either too late or too infrequent. Inspections solely at the end of the trip can lead to undetected problems that might have developed during travel. Waiting for every 200 or 500 miles before checking cargo may also create risks if there are any loose or shifting items that could compromise vehicle control or cause accidents. Regular checks, especially in the early stages, are crucial for maintaining safety on the road.