Please choose the correct ending to complete the given sentence: Walking the dog: A large black dog is walking down the street. He is holding the leash of another dog in his mouth. the second dog

Ending1: walks up to the first dog. Ending2: allows the first to lead him wherever he goes. Ending3: follows the first to grab his leash. Ending4: does not even seem to like the dog.

Answer format: ending1/ending2/ending3/ending4