Please choose the correct ending to complete the given sentence: Tumbling: A small group of children are seen standing before a mat with an instructor helping. the girls

Ending1: then begin throwing a rope to the back and covering the boys head with the rope. Ending2: then pole vault on the mat and swing during a routine. Ending3: do various gymnastics moves across the mats while an instructor assist them and another points to the side. Ending4: take turns running to the mat and pushing it down.

Answer format: ending1/ending2/ending3/ending4