The correct hand signal for indicating a right turn is:

The correct hand signal for indicating a right turn is to raise your hand and arm upward. This signal is universally recognized and clearly communicates to other drivers and pedestrians that you intend to make a right turn. When the arm is extended upward, it aligns with the right turn motion, allowing for easy visibility and understanding from those around you.

Utilizing this method ensures safety on the road, as it helps to avoid confusion and improve communication among drivers. The other hand signals serve different purposes: extending the arm straight out indicates a left turn, while extending the arm downward is a signal to stop. Waving your hand back and forth does not convey any recognized traffic maneuver and could lead to misinterpretation, which is why it’s not an appropriate way to indicate a turn. Understanding these signals is crucial for safe driving and compliance with traffic regulations.