Please choose the correct ending to complete the given sentence: Doing crunches: A woman is in a gym, sitting on a ball. She is doing several sit ups on the ball. she

Ending1: gets up, walking out of the gym. Ending2: then lays down, and does several throws onto the machine. Ending3: continues doing sit ups propping her feet up. Ending4: swings her leg, hitting the ball over and over.

Answer format: ending1/ending2/ending3/ending4