Please choose the correct ending to complete the given sentence: Using uneven bars: A gymnast wearing red leotards is performing gymnastics on uneven bars in a large stadium with a several spectators. she

Ending1: is doing front flips and back flips with swift motion without falling down. Ending2: performs a gymnastics routine on uneven bars on the basement, then rides a bus and rides up a hill to the top. Ending3: does her routine, jumping and flipping up and down as she does it. Ending4: is doing push ups as she runs.

Answer format: ending1/ending2/ending3/ending4