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". 

Example Input: [header] How to make fruit crisp [title] Preheat your oven to 350 degrees f (175 degrees c). [title] Coat the bottom of a 9 x 12 baking dish with butter. [substeps] Use a stick of butter from the refrigerator to prevent clumps on the dish. <sep> (A) Fold the top two or three times so the butter is completely mixed in. [title] Place an inch of butter in each of the bottom four corners of the pan. (B) Use a butter knife to remove excess butter. Use a spatula to score small bumps on the surface of the dish by lightly tapping the butter over the area. (C) You will not need to use the entire stick, so only expose 1 end of the butter. [title] Make fruit crisp using a variety of fruits. (D) [title] Wash two large fruit pistachios in warm water. [title] Mash them with a fork or another food processor until they are smooth.
Example Output: C

Example Input: [header] How to read a screw thread callout [title] Read the numbers. [step] They will look something like one of these : [substeps] 4-40 x. 5 1/4-20 x 5/8 m3-0.50 x 10 [title] Interpret the first number. [step] The first number gives the major, or largest, diameter. <sep> (A) Next, determine the size of the screw thread you wish to use. Write these numbers down on several pieces of paper and trace around them. (B) It also tells you the larger diameter of a screw thread to create a series of polygons which share a small degree of overlap by a single number. [title] Separate the single digits in each string from each string. (C) [substeps] In unified threads (measured in inches) there are numbered diameters 0 through 10, with 0 the smallest and 10 the largest. ( diameters 12 and 14 may also be found, but are usually on older equipment and needed for repairs or restorations. (D) However, an " x " will bring more light up on an empty needle, so use a tray or ice scraper to fill it to feel the thickness of the screw. The next number tells us that the machine is a small amount bigger or larger than what we used it for.
Example Output: C

Example Input: [header] How to bake a chilli chocolate sponge cake [title] Heat an oven to 160 ° c/325ºf/gas 3 (reduce by 20 ° c if using a fan oven ) [title] Grease a cake tin. [step] Use 20 cm (8 inches) square, or a spring-form pan. [title] Melt the chocolate. <sep> (A) [step] Melt the chocolate, the steps below take you to a cake tin. [title] Line the tin and pour in the egg. (B) [step] Add the melted chocolate and whisk the ingredients until smooth. [title] Add heavy cream and oil to the creamed ingredients and light oil to lower the heat to low. (C) [step] Measure out and place it in a microwave-safe bowl. Place the pot of water on a double boiler. (D) [step] This can be done using one of the three following ways : [substeps] Break the chocolate into as small pieces as possible and place in a small bowl. Boil a small pan of water, then place the bowl of chocolate within.
Example Output:
D