What does a red traffic light indicate?

Answer: B — Stop and do not proceed until the light turns green

A red traffic light signals that drivers must come to a complete stop at the designated stop line, crosswalk, or intersection. It is a clear indication that traffic should not proceed until the light changes to green. This rule is essential for maintaining the flow of traffic and ensuring safety at intersections. When a red light is illuminated, it prevents collisions by directing all vehicles to halt, allowing pedestrians to cross safely and allowing other vehicles with the right of way to proceed. Understanding the meaning of the red light is crucial for all drivers to follow traffic laws and avoid accidents. The other options present different scenarios related to traffic signals and the rules of the road, but they do not accurately describe the action required when faced with a red light.