Please choose the correct ending to complete the given sentence: Arm wrestling: These 2 people are arm wrestling each other and having fun. both of them

Ending1: have purple letters on their chest and they're doing flips, landing on the mat. Ending2: are in gym smiling and having a great time and that scares the other. Ending3: talk while doing it and the woman fights hard to not have her arm taken down. Ending4: accidentally hit each other with their elbow and does kind of juvenile dance in a circle.

Answer format: ending1/ending2/ending3/ending4