Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to give cat milk to your cat [title] Use specially formulated milk. [step] Specially formulated cat milks are lactose-free. Choose a cat milk that is enriched with taurine-an essential amino acid that is required for heart and eye health.

Ending1: Using quality milk ensures that the milk is well-formulated. [substeps] This is one of the first steps to increase nutrition for kittens. Ending2: Give your cat your plain taurine-this is specifically formulated for cats due to lactose content; do not try pet store brands or superstores containing soy or dairy milks. [substeps] Multi-ingredient ingredients such as black beans, peas, lentils, brown sugar, and fruit also matter. Ending3: You can find specially formulated milks at your local pet store, or ask your veterinarian. [substeps] Because the majority of adult cats are lactose intolerant, do not give your cat cow's milk. Ending4: [title] Consider purchasing a cat milk hybrid made from soy milk. [step] Soy milk combined with other ingredients will produce dairy milk that is fortified with animal fat.

Answer format: ending1/ending2/ending3/ending4