Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to identify a great dane [title] Note the dog's size. [step] A great dane's most notable and outstanding feature is its size. This breed can grow to stand around 36 inches (91 cm) and weigh up to 200 lbs (90 kg).

Ending1: Of course, it is important to keep in mind the size and weight of its body, however, while sizing your dog a great dane is mostly up to you. [substeps] The body girth should be the biggest difference between the dog and the dwarf dog. Ending2: [substeps] Most great danes don't appear head-high or noticeably weighing over 200 lbs (75 kg). Most great danes have a sleek coat that is pulled together throughout their necks, between their shoulders, tail, and front legs. Ending3: [substeps] Great danes with a length of 40 pounds (19. 9 kg) tend to be the bigger dogs. Ending4: These dogs grow quickly during puppyhood and reach maturity around age two or three. [title] Look at the dog's large head.

Answer format: ending1/ending2/ending3/ending4