Please choose the correct ending to complete the given sentence: Fixing bicycle: A bike is seen upside down in a shop. A man shows how to remove a tire. he

Ending1: puts on a new one and rolls onto his bike. Ending2: holds onto the handlebars and shows off how to remove parts. Ending3: then replaces it and tightens it back into place. Ending4: then grabs a browned tire, flattening it flat.

Answer format: ending1/ending2/ending3/ending4