Please choose the correct ending to complete the given sentence: Snow tubing: A group of people are sledding down a hill. they

Ending1: are intertubing down hills of snow. Ending2: stop at the top and stand up to look around. Ending3: are riding on tubes going one at a time. Ending4: stop and shake hands with friends, then continue going on their own stunts on the ice.

Answer format: ending1/ending2/ending3/ending4