What does a flashing yellow light indicate?

A flashing yellow light indicates that drivers should proceed with caution. This signal alerts motorists that they need to be aware of their surroundings and proceed through an intersection or area carefully, as there may be potential hazards or other vehicles that could be crossing their path. It is a warning that requires a driver to reduce speed and be prepared to stop if necessary, rather than forcing them to come to a complete stop immediately as would be required for a solid red light or a stop sign.

In contrast, options that suggest stopping immediately or speeding up would be inappropriate responses to a flashing yellow light. It's also important to note that "prepare to turn" might involve different signals or situations, such as yielding to oncoming traffic or waiting for a green light. The flashing yellow light simply emphasizes caution and awareness rather than definitive actions such as stopping or turning.