Please choose the correct ending to complete the given sentence: Washing hands: The doctor uses a brush to scrub nails and hands. A doctor washes their hands in a large stainless steel sink with hand soap multiple times. the doctor

Ending1: uses the brush to rub a suture needle into his palms. Ending2: uses a towel to clean on the sink. Ending3: uses a small brush to wipe several areas on the body of the sink and change water for the other areas. Ending4: completely rinses their hands then clasps together and walks out of the room without touching anything.

Answer format: ending1/ending2/ending3/ending4