Please choose the correct ending to complete the given sentence: Tumbling: A girl does cartwheels in a back yard. Another girl watches from a window. Then the first girl does a hand stand. the 2nd girl

Ending1: then does a splits on a balance beam. Ending2: does a back flip. Ending3: comes outside to talk to the first girl. Ending4: does an arm stand.

Answer format: ending1/ending2/ending3/ending4