Besides the coupling itself, what trailer components should you inspect as part of a full combination vehicle pre-trip?

Pick an answer

1. Only the trailer's marker lights, since brakes and tires are covered by the annual inspection
2. Nothing beyond the coupling, since the rest of the trailer is the shipper's responsibility
3. Only the cargo securement, not the trailer's own running gear
4. The trailer's tires, wheels, and mud flaps, along with its lights and reflectors

Correct!

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