What must you do if you see an accident ahead while driving a heavy vehicle?

Answer: B — Slow down and prepare to stop

When you encounter an accident ahead while driving a heavy vehicle, slowing down and preparing to stop is crucial. Heavy vehicles, such as trucks, require a longer stopping distance due to their size and weight. By reducing your speed, you give yourself more time to assess the situation, react appropriately, and stop safely if needed. This action not only enhances your safety but also protects others on the road by avoiding abrupt or dangerous maneuvers. In addition, this approach allows for safer navigation through potentially hazardous areas, especially where visibility may be compromised or where other drivers may be unexpectedly stopping. Maintaining control of your heavier vehicle while responding to changing road conditions is essential for preventing further accidents and ensuring the overall safety of all road users.