You are approaching a tunnel with a road sign displayed in front of you and want to overtake a slow vehicle driving ahead of you:

1. It is forbidden to overtake, or to try overtaking, within a distance of 100 meters before the tunnel.
2. If the tunnel is sufficiently lit, it is also permitted to overtake inside the tunnel.
3. Correct answer: It is forbidden to overtake,inside the tunnel or to try overtaking, within a distance of 50 meters before or after the tunnell
4. It is forbidden to overtake, and to try overtaking, within a distance of 250 meters before the tunnel.

WhyTunnel sign: from 50 m before the tunnel, inside it and for 50 m after the exit, overtaking is forbidden. Tunnel lighting does not change that.