Please choose the correct ending to complete the given sentence: Snow tubing: An individual wearing face covering drags an inner tube type device along the snow, surrounded by other people doing the same thing. the individual

Ending1: walks towards another individual wearing a red jacket. Ending2: demonstrates what he's doing by filling a tube with water. Ending3: puts on their goggles and slides the piece of metal along the snow. Ending4: begins vacuuming the front of the inner tube on which others are walking.

Answer format: ending1/ending2/ending3/ending4