You're driving on a motorway. What does it mean when a lorry ahead of you switches on its hazard warning lights? You're driving on a motorway. What does it mean when a lorry ahead of you switches on its hazard warning lights?

• Possible answers:

   
• A. There are speed cameras ahead
• B. The lorry is about to overtake
• C. The lorry is leaving the motorway
• D. Traffic further ahead may be stopping