Please choose the correct ending to complete the given sentence: Brushing teeth: A boy is standing next to a sink in a bathroom. he

Ending1: uses a knife to scrape an ingredient against a spoon. Ending2: brings a can of shaving foam to his face. Ending3: puts toothpaste on a toothbrush and begins brushing his teeth. Ending4: uses a brush to shave about 10 beard hairs off his head.

Answer format: ending1/ending2/ending3/ending4