Please choose the correct ending to complete the given sentence: Tai chi: A young asian boy begins walking out of a building on to the concrete. a group of boys

Ending1: is outside practicing from behind a rock. Ending2: are laying clean concrete covering the sidewalk on side of the street. Ending3: with ears in walk past him and their walk slows down, for a brief second before going back. Ending4: then appear dressed in a white karate shirt fighting against one another.

Answer format: ending1/ending2/ending3/ending4