A steady yellow light indicates that:

A steady yellow light serves as a warning that the traffic light is about to change to red. The purpose of this indication is to alert drivers to prepare to stop if it's safe to do so, as running a red light can lead to accidents and violations. It signals that the right of way is about to change, making it crucial for drivers to be cautious.

The other options do not accurately convey the meaning of a yellow light. A green light following soon is not guaranteed, and it does not mean that the intersection is clear or that speeding through is safe. Therefore, recognizing the importance of the yellow light helps driver safety and adherence to traffic laws.