What does a flashing red traffic light mean? You must:

A flashing red traffic light indicates that drivers must come to a complete stop before proceeding through the intersection. This signal is intended to communicate a need for caution and to ensure that drivers assess the situation for safety before moving forward. After stopping, drivers should only continue when it is safe to do so, yielding the right-of-way to any other vehicles or pedestrians in the intersection.

This traffic control measure is similar to a stop sign, reinforcing the necessity for drivers to be vigilant and aware of their surroundings. B and C do not reflect the full requirement to stop, which is essential at a flashing red light. D suggests that right turns can be made without stopping, which misinterprets the necessity for coming to a full stop regardless of intended direction.