Please choose the correct ending to complete the given sentence: Slacklining: A firefighter is shown walking on a tight rope in his gear very slowly. he

Ending1: picks up the rope and gets on the tight rope. Ending2: ropes two different animals into the stay on the tight rope. Ending3: moves along the rope towards the end and walks back to the start until he fails. Ending4: uses the rope higher and higher.

Answer format: ending1/ending2/ending3/ending4