Please choose the correct ending to complete the given sentence: Assembling bicycle: He points to the frame while speaking to the camera and leads into him screwing objects into place. the person

Ending1: continues working on the cabinet and pulling out tools. Ending2: places the object on the sofa. Ending3: continues to screw the frame as well as the chain while turning and speaking to the camera. Ending4: gradually lines out sheet metal which he cuts vertically while talking to the camera occasionally.

Answer format: ending1/ending2/ending3/ending4