If an emergency vehicle is moving in your lane displaying red flashing lights or using a siren, you are required to:

Answer: A — Increase your speed

The correct answer is not A. When an emergency vehicle is moving in your lane displaying red flashing lights or using a siren, you are required to either pull over to the curb and stop (choice C) or stop immediately (choice D). It is important to prioritize safety and make way for emergency vehicles to pass through quickly and safely. Moving to the left lane (choice B) may not always be necessary or safe, depending on the traffic conditions and the position of the emergency vehicle.