What should you do before changing lanes?

Answer: A — Signal your intention, check mirrors, and look over your shoulder

Before changing lanes, it is essential to signal your intention, check your mirrors, and look over your shoulder. This comprehensive approach ensures that you communicate your maneuver to other drivers while also being aware of your environment. Signaling alerts other road users to your plans, which is crucial for safety. Checking your mirrors helps you see vehicles approaching from behind or alongside you, while looking over your shoulder allows you to check for any blind spots that may not be visible in the mirrors. This technique minimizes the risk of collision and promotes safer lane changes, ensuring that you are fully aware of all surrounding traffic conditions.