Please choose the correct ending to complete the given sentence: Doing crunches: The shirtless man is doing crunches. the woman

Ending1: is doing crunches while her legs is on a machine. Ending2: put tips in the squares, then the man helped the woman to put them in the squares. Ending3: is doing crunches on the soles of her feet. Ending4: in white shorts was sitting at the table and she and the shirtless man stopped.

Answer format: ending1/ending2/ending3/ending4