Please choose the correct ending to complete the given sentence: Installing carpet: A camera pans away from a sign and leads into people pushing material around a floor. A bend bends down around a floor and pushes the material around the room. in the end

Ending1: someone puts a piece of fabric on the floor and burrs it to make a triangle. Ending2: the credits roll and the camera is shown close up again. Ending3: people lift weights into the air and people cheer. Ending4: the camera pans around the finished floor.

Answer format: ending1/ending2/ending3/ending4