Please choose the correct ending to complete the given sentence: Tumbling: A young girl wearing a blue ribbon in her hair standing in front of a rock garden demonstrates a gymnastic move called a power hurdle. the young gymnast

Ending1: demonstrates an exercise called a back-bend move. Ending2: takes another powerful swing and misses her first throw. Ending3: then mounts on the rock wall and begins to do the move using her feet, hands, knees and arms. Ending4: kneels and lifts a large weight over her head while her trainer instructs her on how to perform the routine correctly.

Answer format: ending1/ending2/ending3/ending4