What does a solid red traffic light indicate?

Answer: C — Stop

A solid red traffic light signifies that drivers must come to a complete stop at the intersection. This rule is established to ensure safety for all road users, including pedestrians, cyclists, and other vehicles. When faced with a solid red light, drivers are required to wait until the light turns green before proceeding. It's essential to recognize that stopping for a red light helps prevent collisions and allows others who have the right-of-way to clear the intersection. This understanding is fundamental to responsible driving and adhering to traffic laws. Knowledge of what a solid red light indicates is crucial for maintaining safe traffic flow and preventing accidents.