Please choose the correct ending to complete the given sentence: River tubing: People board a bus and exit at a water park. People grab rafts, and people on rafts fill a river. we

Ending1: see an artificial waterfall and people sliding through it. Ending2: then see people picking up fish on the lake, and park their rafts near a tree stump. Ending3: see the bus outside of a school. Ending4: see a former mariner we just boarded.

Answer format: ending1/ending2/ending3/ending4