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 football brownies [title] Preheat the oven and melt the butter with the unsweetened chocolate. [step] Turn the oven on to 350 degrees f (176 c). Get out a medium saucepan and place 1 cup (226 g) of butter in it. <sep> (A) Turn the heat to medium low and let the butter melt for about 1 minute or until it melts. [substeps] It's best to use unsweetened butter because it doesn't contain the white chocolate protein it caramelizes more effectively. (B) Stir the two together with a wooden spoon until melted and the mixture is smooth. [substeps] You can use either unsweetened or unsweetened chocolate. (C) Place a sieve over the top to break up any remaining clumps of butter and sugar that might be settling in the butter and place the bowl inside the pan. [substeps] If you prefer, you can use a stand mixer that is set to low speed or you can run a light mixer over the top. (D) Chop 6 ounces (170 g) of unsweetened chocolate into chunks and add it to the saucepan. Melt the butter with the chocolate over low heat.
Example Output: D

Example Input: [header] How to clean rubber boots [title] Wipe away light dirt and grime. [step] If your boots aren't especially dirty, you can usually clean them easily with a damp cloth. To prevent dirtiness from building up on your boots and causing longer cleaning times, do this after each time you use your boots. <sep> (A) Before handling an object or stepping on something wet, make sure you wipe it away on a rag first. Use a mild soap and water to wipe off even the smallest traces of dirt. (B) [substeps] To increase the dirt fighting potential of your damp cloth, mix 1 tsp (5 ml) of dish soap with a ¼ gallon (1 l) of water. Douse your rag in this, and wipe down the boots. (C) [title] Grind three pounds (177 g) of dry powder on a coffee grinder. [step] The dry powder will help to transfer dirt and dust to the boots. (D) This will clear little dirt and grime off of your boots, leaving them looking brand new. [substeps] If your boots are already cleaned, you may need to consult a shoe store or partner to inspect them for a better cleaner.
Example Output: B

Example Input: [header] How to become a better leader [title] Communication is key. [step] Clear communication is an important part of any successful relationship, and the relationship between leader and team member is no different. Express your ideas clearly, making sure employees understand what you're asking of them. <sep> (A) Create a conversation-friendly environment, and give employees the freedom to express their thoughts and concerns. Team members are more willing to trust a leader with whom they are able to openly communicate. (B) Most complex communications convey the needs and solutions of the person at stake, so effectively, communication is vital to get people to work well together. [substeps] Briefly explain the benefits of doing a new task to employees without understating those benefits. (C) Be concise, allowing employees to relate to what you are trying to convey. [title] Discuss why you view conflict as a two way street. (D) [substeps] Follow your employee's lead, without trying to push them, instead showing them you know what you want them to do. Show them that you're a leader by telling them they are doing the right thing and that they do not have to rush.
Example Output:
A