Please choose the correct ending to complete the given sentence: Slacklining: . a close up of a person walking on a rope

Ending1: is shown as well as a rope to follow. Ending2: . Ending3: is shown followed by and old man speaking to the camera and more shots of the person walking. Ending4: is seen that leads into clips of people from the field throwing balls.

Answer format: ending1/ending2/ending3/ending4