What is the purpose of using turn signals?

Answer: A — To warn other drivers about your intention to change lanes or turn

Using turn signals serves the essential purpose of communicating your intentions to other drivers on the road. When you activate your turn signals, you provide a clear indication that you plan to change lanes or make a turn. This communication is vital for maintaining safety and preventing accidents, as it allows other drivers to anticipate your actions and adjust their driving accordingly. Proper use of turn signals fosters a more predictable and harmonious flow of traffic, as all road users can make informed decisions based on the signals provided by others. The other options do not capture the primary function of turn signals. While signaling can inform pedestrians of your movements, it is not their primary intent. Similarly, turn signals do not serve to indicate speed or to notify police, which would typically involve other mechanisms or communication methods. Thus, the correct answer underscores the critical role of turn signals in enhancing road safety through effective communication.