Please choose the correct ending to complete the given sentence: Horseback riding: A police officer is riding a horse down the street very slowly. many bystanders

Ending1: cheer as he gets closer. Ending2: are walking by, cars are passing and casually moving along. Ending3: are standing up nearby. Ending4: join in to help him, and several other cars come along.

Answer format: ending1/ending2/ending3/ending4