Please choose the correct ending to complete the given sentence: Doing crunches: A woman is sitting on a mat. She lays back and starts lifting her legs in the air. she

Ending1: starts doing shoulder lifts. Ending2: stands up and swings the barbell in the air. Ending3: moves back and forth on the mat. Ending4: continues working out on the mat.

Answer format: ending1/ending2/ending3/ending4