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 protect yourself from replica watch websites [title] Use your credit card. [step] Not your debit card, but your credit card. [substeps] The only payment method you should use is credit card. <sep> (A) Using a credit card only licenses you to pay for certain services, such as security clearance. Also, you can get a replica watch at the store. (B) Then you'll pay with cash or check. If cash cannot be reached, that means that your account is not secure. (C) If you want to shop around, try to use a credit card, as they don't grant these types of deals. For example, you can use a credit card to buy super priced watches, but in return they must be an anniversary gift. (D) This is the only payment option that protects you from internet scams. Why? Because your bank has your back.
Example Output: D

Example Input: [header] How to care for hair between salon trips [title] Buy a deep conditioner. [step] You probably already have shampoo and conditioner. The conditioner you use regularly does condition your hair as thoroughly as a deep conditioner. <sep> (A) A deep conditioner will make your hair appear softer, shiner, and healthier. It should only be used once a week. (B) However, you're willing to risk starting your hair oily or looking like a buck without a deep conditioner. Look for a deep conditioner made specifically for you hair at your local salon. (C) But you don't want to purchase a deep conditioner as any hair at all. Invest in a deep conditioner and make sure you use it daily. (D) Choose a deep conditioner, spritz it on your hair, then shampoo, then blow dry. You can simply apply the deep conditioner once a day and then continue rinsing to replace it over time.
Example Output: A

Example Input: [header] How to sign a sympathy card [title] Start with an appropriate salutation. [step] The most common way to begin a sympathy card note is to start with the word " dear. " you could also write " dearest, " or simply start with the person's name. <sep> (A) In this case, you will write " sincerely " or " respectfully " or something similar. If you finish your letter with a nice salutation, you may add either a cross mark or " yours truly " before the recipient's name. (B) Avoid starting with " hi " or another casual salutation-err on the side of being a little formal. [substeps] Address the person to whom you're writing as you'd normally address that person. (C) You may decide to skip this step for a more personal note, but if you are planning on leaving the card with the person, take appropriate steps to start making the card easier to read. [substeps] Use " your name " after " dear " or " mrs./mr./ms. (D) This is appropriate in a large number of situations. [substeps] For example, the person you want to send the sympathy card to might be calling you " dear tina.
Example Output:
B