Please choose the correct ending to complete the given sentence: Tumbling: We see an arena from out doors. We see people on trampoline performing flips in the arena. we

Ending1: see a person almost fall after flipping. Ending2: see tires on a truck. Ending3: return to the screens twice as they are lit. Ending4: see the tail and pull the rope.

Answer format: ending1/ending2/ending3/ending4