When should drivers use the centre lane of a three-lane motorway? When should drivers use the centre lane of a three-lane motorway?

• Possible answers:

   
• A. When overtaking slower-moving vehicles in the left-hand lane
• B. When overtaking vehicles in the right-hand lane
• C. When driving at a constant speed of 60 mph or less
• D. When driving at a speed between 60 mph and 70 mph