Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to identify an australian shepherd [title] Look at the dog's body size and shape. [step] The aussie's body is slighter longer than it is tall. They stand about 20-23 inches tall at the shoulders for males, and about 18-21 inches tall at the shoulders for females.

Ending1: The australian shepherd's body shape is three-dimensional. It is 1.3 inches wide , 1.3 inches thick, and 1.4-inches long at the shoulders. Ending2: A british shepherd grows taller at about 223 inches. [substeps] This breed ages from a young pup to a mature adult dog on average. Ending3: Average-sized dogs, with a big body, are found roaming the world. [title] Look at the aussie's face. Ending4: [substeps] The aussie has a sturdy build that is solid but well balanced. [title] Look for a smooth, thick coat.

Answer format: ending1/ending2/ending3/ending4