You're towing a trailer along a three-lane motorway. When may you use the right-hand lane? You're towing a trailer along a three-lane motorway. When may you use the right-hand lane?

• Possible answers:

   
• A. When there are lane closures
• B. When there's slow-moving traffic
• C. When you can maintain a high speed
• D. When large vehicles are in the left and centre lanes