Please choose the correct ending to complete the given sentence: Disc dog: A woman is throwing a red frisbee. a black and white dog

Ending1: is eating chocolate and a frisbee is shown lying on the ground. Ending2: is running around at a dog barbecue. Ending3: is chasing after the frisbees. Ending4: follows behind in the background.

Answer format: ending1/ending2/ending3/ending4