What must a driver do when an intersection ahead is blocked by a traffic jam, even if their traffic light shows a green signal?

1. Enter the intersection immediately to secure a position before the signal changes.
2. Do not enter the intersection if doing so will force the vehicle to stop and obstruct cross traffic.
3. Enter and sound the horn continuously to urge forward cars to move.
4. Pull onto the pedestrian crossing to wait for the road to clear.