Please choose the correct ending to complete the given sentence: Assembling bicycle: Then she shows how to adjust the saddle by moving it back and forth. She later demonstrates how to remove the saddle off. she

Ending1: then rides all along the trail with the top of the saddle up. Ending2: uses a brush to remove the saddle. Ending3: kneels in front of the horse to shows how it moves. Ending4: puts the new one on and then uses tools to tighten it back on.

Answer format: ending1/ending2/ending3/ending4