Please choose the correct ending to complete the given sentence: River tubing: A school bus unloads with kids carrying boats with "down the delaware" overlaid. Kids walk to the water's edge and launch the water craft, including boats and inner tubes. a man

Ending1: teaches several students how to perform wakeboarding tricks while sailing in the water and receives awards from the class instructors. Ending2: mixes leaf paste with liquid on the tubing and puts it on the inner tubes. Ending3: land from the water, went water skiing and his powered boat go water skiing. Ending4: narrates the scene at the helm of a boat.

Answer format: ending1/ending2/ending3/ending4