What is the purpose of signaling when you want to turn or change lanes?

Answer: A — To let other drivers know where you are going

Signaling while turning or changing lanes serves as a form of communication with other drivers on the road. It allows them to anticipate your movements and make necessary adjustments, such as slowing down or changing lanes themselves. This helps to promote safe and efficient traffic flow. Options B and C are incorrect because signaling is not meant to warn other drivers to slow down or make more noise. Option D is also incorrect because signaling does not have any impact on the speed of your vehicle.