Please choose the correct ending to complete the given sentence: Walking the dog: Then several images of dogs are shown and then the woman reappears alone. Then another set of images are shown where the dogs are being helped by vets. the man

Ending1: interviews the vets one by one and ends with the dog's reaction to the interviews. Ending2: then reappears with the lady and they begin to talk again. Ending3: is now on the set and demonstrating how dogs are trained and an image is shown of an african gym model. Ending4: interviews some vets who are squatting under the vehicles and speaking with others.

Answer format: ending1/ending2/ending3/ending4