What should you do when preparing to turn left at an intersection with an oncoming vehicle?

Answer: B — Yield the right-of-way to the oncoming vehicle

When preparing to turn left at an intersection and there is an oncoming vehicle, yielding the right-of-way to that vehicle is crucial for ensuring safety. The law mandates that you must give way to oncoming traffic when making a left turn, as they have the right-of-way. This helps prevent potential collisions by allowing the oncoming vehicle to pass uninterrupted. Making a left turn across traffic requires careful judgment of speed and distance. By yielding, you ensure that the oncoming vehicle has adequate time to pass, which mitigates the risk of an accident. Being aware of your surroundings and the actions of other drivers is vital during this maneuver, and waiting for the oncoming vehicle to clear the intersection allows for a safer and more controlled turn.