Q: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
[header] How to treat obesity in cats [title] Talk to your vet. [step] Before starting your cat on a diet, it's important to talk to your vet. A vet can help you determine the best, safest diet for your cat, as well as a healthy weight for your cat. <sep> (A) Keep the following in mind during assessing your cat's current weight : [substeps] Start with a low calorie diet. Choose 1-2 foods that will give your cat much of its protein. (B) [substeps] Ask your vet about the best food for your cat. Your vet may recommend putting your cat on a diet food to help it lose weight. (C) [substeps] Assess your cat's weight each day. Your vet can help you create a weight and size scale for your cat. (D) The vet can then recommend appropriate treatment based on your cat's specific health concerns. [title] Introduce familiar foods to your cat before introducing new foods to it.
A:
B