Please choose the correct ending to complete the given sentence: Spinning: There's a personal trainer in a pink tank top and black athletic shorts standing a gym with many dumbbells, barbells and basketballs behind her. There are also some other gym equipment behind her. she

Ending1: is talking about how to use the equipment. Ending2: is talking while standing in front of a row of parallel bars and demonstrating several different steps on how to properly do them. Ending3: shows how to use another exercise equipment, like a stand up stand up bar. Ending4: continues to exercise on the barbells and the trainer watches her from the safety of her trainer.

Answer format: ending1/ending2/ending3/ending4