What does a flashing red light at an intersection mean?

Answer: B — Come to a complete stop and proceed only when safe

A flashing red light at an intersection indicates that a driver must come to a complete stop. This is similar to a stop sign, and it requires that you assess the situation and ensure that the way is clear before proceeding. After stopping, you should only continue when it is safe to do so, yielding to any other vehicles or pedestrians that may have the right of way. This rule is crucial for maintaining safety at intersections, as it helps prevent accidents that could occur from misunderstanding the signals being presented. The clarity of a flashing red light serves as a strong warning for drivers to be cautious and vigilant, reinforcing the importance of assessing the traffic conditions before making decisions.