Please choose the correct ending to complete the given sentence: Disc dog: A man and a dog walk onto a field. A man throws a frisbee and the dog chases after it. the dog

Ending1: brings the frisbee back to the man. Ending2: catches and then runs away. Ending3: catches the frisbee and runs to fetch. Ending4: gets the frisbee and chases after the man.

Answer format: ending1/ending2/ending3/ending4