Please choose the correct ending to complete the given sentence: Rollerblading: Several person are seen riding down a hill on roller blades while a person on a police bike rides in front. at one point

Ending1: several people fall and trip over one another but keep riding their blades on. Ending2: people ride down themselves after the police ride down. Ending3: , a man falls off his bike, but is able to stand up. Ending4: people fall off their bikes and run into each other.

Answer format: ending1/ending2/ending3/ending4