What action should a driver take at a flashing red light?

Answer: B — Come to a complete stop before proceeding

When a driver encounters a flashing red light, the correct action is to come to a complete stop before proceeding. A flashing red light functions similarly to a stop sign, signaling drivers that they must stop and ensure it is safe to continue. This requirement is essential for safety, as it allows the driver to check for oncoming traffic, pedestrians, or any other hazards at the intersection before they move forward. This action promotes awareness of one's surroundings, enabling the driver to make informed decisions rather than proceeding into potentially dangerous situations. Other options suggest various levels of caution or assumptions about traffic, which could lead to unsafe driving conditions. By adhering to the requirement to stop completely, drivers contribute to overall road safety and maintain control of their vehicle.