Final answer:
When making a left turn with a long vehicle, choose the outermost lane.
Step-by-step explanation:
When driving a long vehicle that makes wide turns, it is recommended to choose the outermost lane to make a left turn. In this case, Lane A would be the appropriate choice as it is the furthermost left turn lane. This allows the vehicle to make the turn without encroaching into other lanes or causing any potential accidents.