What must a driver do at a red traffic signal light?

When a driver approaches a red traffic signal light, the correct action is to stop completely at the designated stop line or before entering the intersection. This is a fundamental traffic rule designed to ensure safety and orderly movement at intersections. After stopping, the driver must wait for the signal to turn green before proceeding. This ensures that all traffic, including vehicles, pedestrians, and cyclists, can navigate the intersection safely without risk of collision.

The option emphasizing stopping first aligns with traffic laws that prioritize safety, specifically in preventing accidents at intersections where visibility and the right of way are crucial. Understanding this requirement helps drivers cultivate responsible driving habits, thereby promoting road safety for everyone.