You are approaching a tunnel before which a sign has been placed, and you wish to overtake a slow vehicle moving ahead of you:

1. AOvertaking or attempting to overtake is forbidden inside the tunnel and within 50 metres before and after the tunnel.
2. BOvertaking or attempting to overtake is forbidden within 250 metres before the tunnel.
3. COvertaking is permitted even inside the tunnel, if there is sufficient lighting.
4. DOvertaking or attempting to overtake is forbidden within 100 metres before the tunnel.

Pick an answer to test yourself