What must you do when you see a yield sign in your driving lane?

Answer: B — Slow down and stop your vehicle if necessary

When approaching a yield sign, it's crucial to understand that the primary purpose of the sign is to alert drivers to the potential need to stop or slow down for other vehicles or pedestrians that have the right of way. Therefore, slowing down and stopping your vehicle if necessary is the correct response. This action ensures that you can safely assess the traffic conditions and make informed decisions about whether to proceed or yield to any oncoming traffic. Yield signs are often found at intersections, merges, or places where a road narrows, indicating that you may need to give way to other road users. By slowing down, you demonstrate caution and awareness, which is essential for safe driving. It's important to remember that ignoring the sign because the road appears clear can lead to unsafe situations, particularly if another vehicle is approaching that you might not see immediately. Furthermore, attempting to speed up or change lanes could disrupt traffic flow and increase the chance of an accident. Thus, proper adherence to the yield sign promotes safety for everyone on the road.