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".
Q: [header] How to care for californian rabbits [title] Provide lots of high quality hay. [step] Hay is the most important food for your rabbit's health, so make sure that she always has access to lots of high-quality hay. Hay helps to provide your rabbit with the nourishment she needs and wears down her teeth as well. <sep> (A) [substeps] You can buy several types of hay from your local pet store. Choose hay that is perfect for your rabbit. (B) Timothy hay is ideal because it is rich and provides her the vitamins and minerals she needs, which are important for her health. [substeps] Hay is available as a bulk bulk in large boxes or bags and sold at your local pet store. (C) [substeps] Timothy hay can be taken from a local farm or butcher. You should provide 1 1/4 of a pear for every pound of hay you feed your rabbit. (D) [substeps] Timothy hay is a great choice for californian rabbits. Make sure that your rabbit has access to unlimited hay every day.
A:
D