Final answer:
When washing hands properly, it is important to clean the arms along with the hands.
Step-by-step explanation:
When washing hands properly, it is important to also clean the arms. According to the Centers for Disease Control and Prevention (CDC) recommendations, you should lather your hands with soap and rub them together, making sure to lather the backs of your hands, between your fingers, and under your nails. After rinsing your hands, dry them thoroughly with a clean towel or hot air blower.