What is the proper procedure for signaling a lane change?

Answer: B — Use turn signals and check mirrors

The proper procedure for signaling a lane change involves using turn signals and checking mirrors. This method is essential for ensuring safety on the road, as it communicates your intent to other drivers and allows you to be aware of your surroundings. When you activate your turn signal, it alerts other drivers that you plan to change lanes, thus providing them with the opportunity to adjust their speed or position as necessary. Checking your mirrors before changing lanes is crucial for spotting vehicles in your blind spots, which are areas not visible through your rearview or side mirrors. This combined process of signaling and checking mirrors helps mitigate the risk of collisions and ensures a smoother transition into the next lane. Using headlights or hand gestures does not effectively communicate your intention to other drivers, nor does speeding up contribute to safer lane changes. Each of these alternatives lacks the comprehensive approach that activating turn signals and conducting a thorough check of your mirrors provides.