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 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.
D

A far away shot of the crowd and people down on the floor where they were playing foosball. Text appears on the screen over the crowd. people <sep> (A) cheer as more text appears. (B) are celebrating as a group of women play shuffleboard. (C) are standing by the audience watching a game of foosball. (D) do flips and tumbles in a large circle in a bowling alley floor.
A

[header] How to stain floors [title] Repair obvious defects such as nail holes, cracks or gouges in the floor using a wood putty or filler. [title] Sand floor in direction of grain of the wood. [step] Use a floor sanding machine and edge sander or sand by hand. <sep> (A) Sand until wood grain remains smooth and crumbly for the time being. [title] Use a large piece of plywood or piece of double-sided lumber (if possible) to cover the area you will stain-this will prevent work marks from getting in. (B) If sanding by hand, use 3 different grits of sandpaper , 30 , 60 and 80. Vacuum floor between each sanding and when finished. (C) [substeps] These sanding machines are designed to remove the grit a step by step so your floor is the shiny shine after sanding. Wood putty or a putty compound can also be used in an adhesive for added shine or leg insulation to improve your budget. (D) While grit is preferred, it makes the floor smoother overall. Sand the floor with the grain grain until it is well smooth but not rough.

B