You're driving along a motorway. When may you overtake on the left? You're driving along a motorway. When may you overtake on the left?

• Possible answers:

   
• A. When you can see well ahead that the hard shoulder is clear
• B. When the traffic in the right-hand lane is signalling right
• C. When you warn drivers behind by signalling left
• D. When there's queuing traffic and traffic in your lane is moving faster than traffic in the lane on your right