Final answer:
In the context of a protected left turn, oncoming drivers are presented with a red light that they must obey to allow the turn to proceed safely.
Step-by-step explanation:
When you have a protected left turn, oncoming drivers face a red light.
This traffic signal setup ensures that you can make the left turn safely without oncoming traffic, which has to stop at the red light. It's essential for drivers to obey these signals to maintain road safety and prevent accidents.