Please choose the correct ending to complete the given sentence: Canoeing: There are people in a group large red tube rapids ride. with other people in canoes going by the person in their canoe

Ending1: before the rapids, the boat enters a river and the continues to push themselves in the river. Ending2: a enters the rapids. Ending3: quickly starts to people paddle faster his tubes slowly to hit speed. Ending4: passes under a bridge.

Answer format: ending1/ending2/ending3/ending4