What does a driver signaling with their right arm extended out the window expect other drivers to do?

Answer: A — Give them space to turn

When a driver extends their right arm out the window, they are signaling their intention to make a right turn. This gesture is a widely recognized hand signal that alerts other road users of the driver's planned action. It is crucial for road safety, as it encourages surrounding drivers to anticipate the turn and give the signaling driver adequate space to maneuver safely. By understanding and responding to this hand signal, other drivers can adjust their speed and position accordingly, ensuring smoother traffic flow and reducing the risk of accidents.