Please choose the correct ending to complete the given sentence: Drinking coffee: Then the dog comes back and begins drinking from a coffee mug that is placed on the coffee table. the stands

Ending1: up and start drinking. Ending2: on both knees, then the dog throws his head back and drinks from the mug while looking over to the camera. Ending3: up from the coffee mug, takes a drink of its own, then walks away. Ending4: on its hind legs to reach the mug and drink the liquid in it.

Answer format: ending1/ending2/ending3/ending4