Please choose the correct ending to complete the given sentence: River tubing: A river surrounded by rocks apperas. Several people are floating through it in intertubes. they

Ending1: pass several people riding and too-many still dos. Ending2: end up going down towards the bottom. Ending3: go through turbulent waters. Ending4: float down the river together through the rapids.

Answer format: ending1/ending2/ending3/ending4