Which lane should you use to prepare for a left turn?

Answer: C — The far left lane.

To prepare for a left turn, you should use the far left lane. This is because the far left lane is typically designated for vehicles that are intending to make a left turn, providing a clear path for the maneuver. Being in this lane reduces the risk of confusion for other drivers and ensures compliance with traffic regulations, which often stipulate that left turns should be made from the leftmost lane. It also allows for a safer and more efficient turn, as you are positioned correctly to proceed straight into the intersection and turn without obstructing traffic that may be going straight on your right.