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 make simple five minute frosting [title] Beat the butter in a medium-sized mixing bowl until smooth and fluffy. [step] You can use an electric mixer or a food processor. [title] Add the powdered sugar a small amount at a time. <sep> (A) [step] Use the stand mixer to mix the ingredients on medium speed until smooth and sugar dissolves. Add the vanilla, milk, and eggs. (B) [step] It will increase the strength of the frosting gradually. [title] Once 1 teaspoons of powdered sugar is added, whip the butter. (C) [step] The mixture will appear dry and crumbly at first, but it will become smoother. [title] Gradually stir in the half-and-half or milk until you have reached your desired consistency. (D) [step] The more powdered sugar the healthier the frosting is. [title] Add the vitamin e oil, and stir to combine.

Ex Output:
C

Ex Input:
[header] How to restore a boat [title] Make a plan. [step] Plan your work by breaking everything down into sections, like chapters in a book. Chapter one is planning. <sep> (A) This is where your business development can start. Analyze the navigation board, take all the necessary materials and then create your grand vision. (B) This step is not yet complete, so you need to prioritize moving toward part 1 of the project. This will help you tackle all your major projects faster, so that you can review your own work by taking each section and remembering to include the steps in that section over time. (C) The next phase might be stripping the boat in preparation for the work. [title] Prepare a work site, gather tools and supplies, carve out a dedicated time on a regular basis with your schedule, consult experts in the field, and also outsource certain components as needed to certain experts. (D) Plan your time on your own to avoid confusion and frustration with each chapter. Be sure that you aren't scrambling for ideas as you go forward so that you don't get overwhelmed by too many ideas.

Ex Output:
C

Ex Input:
[header] How to make martinis [title] Add the ice, gin, and vermouth to a cocktail shaker and stir well. [step] To make the martini, you'll need a cocktail shaker or mixing glass. Fill it with cracked ice , 2 ounces (74 ml) of gin and ounce (15 ml) of dry vermouth. <sep> (A) Stir the top of the shaker or pitcher to mix the ingredients. [substeps] If you don't have a shaker, make one by knocking on the back of the shaker or on the top of the glass. (B) Use a long spoon to stir the ingredients for about 15 seconds or until it's well mixed. [substeps] If you prefer, you can shake the martini to mix it together. (C) [substeps] Before adding the gin, make sure you thoroughly mixed the ingredients. Any excess liquid will melt and thicken the cocktail as you drink it. (D) [substeps] If you prefer a sweeter drink, you can add in a pinch of cinnamon or half of a lemon instead. [title] Cover the shaker and shake for a few minutes.

Ex Output:
B