What does a flashing yellow light indicate?

Answer: B — Proceed with caution

A flashing yellow light indicates that drivers should proceed with caution. This means that while it is safe to continue through the intersection, drivers need to be alert and prepared for potential hazards or changing conditions. The flashing yellow light serves as a warning that there may be something ahead that requires careful attention, such as pedestrians crossing, turning vehicles, or reduced visibility due to weather. In this context, stopping immediately or preparing to stop would be inappropriate responses to a flashing yellow light, as it does not signal an absolute stop but rather a need for vigilance. Speeding up to clear the intersection could lead to dangerous situations, especially if drivers are not aware of potential obstacles or other road users. Thus, the appropriate action is to proceed with caution, maintaining a safe speed and being prepared to react as necessary.