Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to feed your shih tzu [title] Determine your shih tzu's weight. [step] It's always best to have your veterinarian or groomer weigh the dog, since they have scales specifically created for this task. However, you can weigh your shih tzu at home with a method that is only slightly less accurate.

Ending1: Start by standing on a scale while holding your dog. Then, put the dog down, and weigh yourself again. Ending2: Weigh the dog thoroughly after weighing him to determine whether or not he weighs his best. [substeps] Adult shih tzus weigh between 400-1500 lbs. Ending3: If your dog is one inch in weight, you'll need to weigh him 3 times a day-with or without a scale. [title] Know your dog's food needs. Ending4: [substeps] If your shih tzu is about 6 inches (15 cm) or less, you can weigh the dog by weight. Generally, adult shih tzus weigh about 6.2 lb.

Answer format: ending1/ending2/ending3/ending4