Please choose the correct ending to complete the given sentence: Wakeboarding: A green boat with black and white accents on it is gliding on the water. a pair of blue and black shoes

Ending1: is attached to the boat. Ending2: is on the bed with a white towel on it. Ending3: are sitting on the dock of a small boat. Ending4: are on a deck while a foot is being placed the right side.

Answer format: ending1/ending2/ending3/ending4