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 buy common stock [title] Find an online broker. [step] The easiest way to work with a broker today is online. You'll open an account with the broker and then deposit money into the account. <sep> (A) When you receive money back, you can make your payments without a current account. Brokers are licensed to do large, complex transactions, so don't hesitate to go to a broker if you are buying large amounts of stock. (B) Then you can search online for those stocks you're interested in investing in. [substeps] Some financial brokers you may consider are miller, a&m, airchat, and bankrise. (C) You can find online brokers by searching online. Some of the more popular include the following : [substeps] Charles schwab e * trade td ameritrade optionshouse [title] Identify if you want a full-service broker instead. (D) Most brokers offer deals to you either on your own or at low interest rates. However, if you don't have an online broker, you should look at a few online brokerages in your area.
Example Output: C

Example Input: [header] How to fake stainless steel appliances [title] Buy some stainless steel contact paper. [step] You can find it at your local home improvement store or online. How much you buy will depend on which appliances you plan on covering. <sep> (A) Pure stainless steel contact paper takes around $10 per share. [substeps] Buy your state's " grants1 " size or 15 millimetres. (B) Pre-cut contact paper works perfectly for this project. [substeps] Do not purchase pre-cut contact paper from a home improvement store. (C) Either use a commercial stainless steel contact paper for your stove, refrigerator, and microwave units. You can also use water mixed with food grade soap or titanium coated with cooking spray. (D) [substeps] Stainless steel contact paper is plastic-based, so it cannot withstand heat. It is not suitable for surfaces that get hot, such as stovetops.
Example Output: D

Example Input: [header] How to make 3d plots using matlab [title] Open the command window. [step] In the default layout this should appear automatically as the biggest window displayed. [title] If the command window isn't present, select home in the upper left corner. <sep> (A) [title] Hit f4 on your keyboard and press enter. [step] A prompt should appear asking for your password. (B) [step] Afterwards, select layout and then " default ". [title] In the command window, define both of your x and y vectors. (C) [title] Navigate to' my plots and trees. [step] You will see a square box that says " next this, " with the name of your plot or tree. (D) [title] On the left sidebar, select advanced update. [step] Under the first panel, click on seeing several options, such as: import + go mode and history all-] advanced e-mail and media feature.
Example Output:
B