What does a solid red traffic light mean?

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

A solid red traffic light indicates that vehicles must come to a complete stop. Drivers are required to remain stopped and do not have permission to enter the intersection until the light changes to green. This regulation exists to ensure safety by controlling the flow of traffic and preventing collisions, as red lights signal that the intersection is not safe for travel in that direction. The other options do not accurately reflect the rules concerning a solid red light. Proceeding with caution or yielding to oncoming traffic contradicts the requirement to stop, while speeding up to clear the intersection goes against the fundamental traffic laws aiming to maintain order and safety on the roads. Understanding the meaning of traffic lights is crucial for all drivers to promote safe driving practices.