You're driving a vehicle towing a trailer on a three-lane motorway. When can you use the right-hand lane? You're driving a vehicle towing a trailer on a three-lane motorway. When can you use the right-hand lane?

• Possible answers:

   
• A. When there are lane closures
• B. When there are slow-moving traffic queues
• C. When your trailer weighs less than 750 kg
• D. When your trailer is fitted with a stabiliser