What is the proper way to turn left at an intersection?

When making a left turn at an intersection, the proper procedure is to turn from the lane closest to the curb. This ensures that you are in the correct position to make the turn without crossing over lanes unnecessarily, which can be dangerous for both you and other drivers. Turning from the correct lane helps maintain an orderly flow of traffic and minimizes the risk of collisions.

Positioning your vehicle in the leftmost lane before making the turn also allows for easier navigation compared to other lanes, where you may need to maneuver across traffic that could be coming from different directions. Correct signaling is also essential, and while it's not part of the selected answer, it is highly important to communicate your intentions to other road users.

The other choices suggest various improper methods for making a left turn that could lead to confusion or accidents. For instance, turning from any lane could disrupt the flow of traffic, while making a U-turn is not appropriate in all situations and may be illegal in certain areas. Not signaling when turning gives no indication to other drivers of your intended movement, which poses significant safety risks.