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 live with both ibs and gerd [title] Know and avoid your trigger foods. [step] Although completely separate conditions, both ibs and gerd come with a set of trigger foods. These may vary from person to person, but it's essential that you're aware of your trigger foods and you avoid them. <sep> (A) [substeps] Many people have food allergies and triggers that negatively impact quality of life. If one of your triggers is food, check out their menu to work up a few good options with little or no calories. (B) Binging on these foods may trigger your mood, lower your risk of paranoia and depression, and reduce your symptoms. Common trigger foods include : [substeps] Chicocortisone and aspirin (e.g. (C) [substeps] If you're not fully sure what foods set off your symptoms, start a food/symptom journal. Write down everything you eat, the symptoms that follow and the severity of the symptoms. (D) The second the disorder begins to manifest on you, know the entire progression so you'll be able to identify triggers more easily. [substeps] Trigger foods are foods such as ice cream, energy drinks, chocolates, candy, pop, and more.
Example Output: C

Example Input: [header] How to remove hair from your throat [title] Try to swallow the hair. [step] If you suspect that you have one or two hairs stuck in your throat, try to just swallow them. The hair will travel through your digestive tract like food does and your body will excrete them. <sep> (A) Pass the hair around your mouth under your tongue until you see no more hairs. It's important that you close your mouth as tightly as possible so that the hairs don't come back. (B) Sucking in the hair will leave your throat full of the hair. If the hairs are stuck in your throat, then you might want to rub a cotton ball or toilet paper over your throat to help get rid of the hairs. (C) This will open up the glycerine lining in your throat and prevent anything from coming out. [substeps] Wait a few minutes to see if they're gone. (D) Your body will not break down the hair because it's made of keratin, a dense protein. [substeps] If it feels like the hair is long, see if you can use your clean fingers to pull the hair out of your throat.
Example Output:
D