You're driving on a motorway. The traffic ahead is braking sharply because of an incident. How could you warn traffic behind? You're driving on a motorway. The traffic ahead is braking sharply because of an incident. How could you warn traffic behind?

• Possible answers:

   
• A. Briefly use the hazard warning lights
• B. Switch on the hazard warning lights and leave them on
• C. Briefly use the rear fog lights
• D. Switch on the headlights and leave them on