What does a yellow traffic light indicate?

A yellow traffic light serves as a warning that the traffic signal is about to change to red. It indicates that drivers need to prepare to stop, as they should not enter the intersection if it is safe to do so. The main purpose of a yellow light is to provide a brief signal for caution, allowing vehicles to either safely clear the intersection if they are already in motion or come to a stop if they are approaching.

Choosing the option that includes both preparing to stop and acknowledging that the light will soon turn red captures the comprehensive meaning of a yellow light. It reminds drivers to pay attention and react accordingly to ensure safety on the road. Thus, understanding that a yellow light signifies both the need to prepare to stop and the impending change to red is crucial for safe driving practices.