Please choose the correct ending to complete the given sentence: River tubing: A large group of people is standing and walking around several stacks of inner-tubes and a bus. two young children

Ending1: are standing in between the inner tubes holding shuttlecock and the waters are pouring down and the child holding is letting the kids float down. Ending2: slide down the sidewalk and get into the inner tubes. Ending3: are sitting in one of the bus seats. Ending4: are seen climbing onto pogo sticks with one holding a ladder and the other climbing on a rope.

Answer format: ending1/ending2/ending3/ending4