At an intersection governed by traffic lights, you want to turn left across oncoming traffic while your light is green. What is your obligation?

1. You have absolute priority over oncoming traffic because your light is green
2. Advance into the junction and yield right of way to oncoming traffic going straight or turning right
3. Oncoming traffic must stop and wait for all left-turning vehicles to clear
4. You must wait behind the stop line until the oncoming traffic light turns red