Please choose the correct ending to complete the given sentence: Rollerblading: . a close up of a person's roller blades

Ending1: are shown with the operator pointing around while nodding to the screen. Ending2: are shown followed by the person moving a large circular object. Ending3: are shown with a man standing in frame. Ending4: are shown followed by the person putting their roller brush down and turning it to make a spot.

Answer format: ending1/ending2/ending3/ending4