What action should be taken if you see a red arrow?

Answer: B — Stop and wait for a green signal

When you see a red arrow, it indicates that you must stop and wait for a green signal before proceeding. The presence of a red arrow specifically signifies that turning in the direction the arrow points is not allowed at that moment. This traffic signal is in place to ensure the safety of both drivers and pedestrians. By stopping, you comply with traffic laws and contribute to orderly traffic flow. Once the signal changes to green, you can then proceed with caution in the direction indicated by the arrow if it is safe.