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". 

Ex Input:
[header] How to reduce fat in your cooking [title] Use broth in place of butter or oil in dishes like mashed potatoes, stir-fry or meat marinades. [title] Substitute applesauce or pureed prunes for butter or oil in baked goods such as cakes, cookies and pastries. [step] Use the same amount called for in the recipe. <sep> (A) Keep in mind your needs vary from recipe to recipe. [title] Try to reduce the number of butter or oil you add into your recipe. (B) [title] Replace cream in recipes with plain yogurt. [step] Yogurt can also be used in place of sour cream on a baked potato or in mexican dishes. (C) Too much fat may cause your cookies and pastries to cook unevenly and cause a hollow cavity or gap in the crust. [substeps] For example, use a bit of ground turkey instead of water in a pasta sauté pan. (D) [title] Moisturize your skin when cooking. [step] Peeling and flaking your skin is an easy way to boost your immune system.

Ex Output:
B


Ex Input:
[header] How to buy a blackhead remover [title] Learn your options. [step] You should not squeeze or pick at blackhead, as this can lead to infection or scarring. However, you can remove pesky or unsightly blackheads with several different types of products that may not necessarily irritate your skin or require treating it with chemicals. <sep> (A) Learning your different options can help you identify the best product for your specific blackhead removal needs. Products that can remove blackheads include : [substeps] Extractor tools pore strips clay masks topical creams [title] Identify the best remover for your skin type. (B) For example, cleansing a burnt face can peel pores, like blackheads, and subtly remove blackheads. Deep pore pimples, which are a common factor for blackheads, are not tended to dry out. (C) [substeps] Avocado, keratin, and brewer's yeast all work well in reducing the inflammation and scarring of blackheads. [title] Pick a chemical neutralizer for stubborn blackheads. (D) Some of the well known brands that are known for their blackheads include tootane, steam, huawba, and celandine. As noted above, these products are more environmentally friendly than other skincare products, especially for those kids.

Ex Output:
A


Ex Input:
They begin to head down the slope until they reach the end and are able to stop themselves. after that <sep> (A) there are three more teenagers struggling to retrieve the piece of rope and one climbs higher and higher to reach the top. (B) they are able to climb up some stairs and get back on the roller and continue talking about their day. (C) , they get out of their tubes and begin to exit. (D) , another group of people line up on the road while the other team joins in.

Ex Output:

C