Please choose the correct ending to complete the given sentence: River tubing: A man and a woman are sitting in two separate floating donuts, the man in the blue, the woman in the green, and both are smiling then the man raises his left arm to wave. a group of people

Ending1: are floating on platforms in float rings floating in the lake, one of them has a microphone. Ending2: take turns climbing up the ladder in the float. Ending3: are also on different colored floating donuts, playing, falling in the water and having a good time. Ending4: in a series of boats erupt in a deep water, then people ride the line and are drags back by a speedboat.

Answer format: ending1/ending2/ending3/ending4