You’re driving on a motorway and have to slow down quickly due to a hazard ahead. How can you warn drivers behind of the hazard?

A: Switch on your hazard warning lights

B: Switch on your headlights

C: Sound your horn

D: Flash your headlights

Hint

Using your hazard warning lights, as well as your brake lights, will give following traffic an extra warning of the problem ahead. Only use them for long enough for your warning to be seen.

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