Please choose the correct ending to complete the given sentence: Snow tubing: A picture of people tubing is shown followed by large groups of people riding tubes down a snowy hill. the people

Ending1: make various turns as they go down the hill while falling into and right back up again from several turns. Ending2: continue moving down the hill and end by standing up and walking around in the end. Ending3: are seen going down and under large city buildings. Ending4: go over hundreds of meters on the tubes one at time and stop, shaking on the ground.

Answer format: ending1/ending2/ending3/ending4