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 make absinthe cocktail [title] Mix a simple blend. [step] Add 3 parts ice-cold water to 1 part absinthe. For a single serving, this is roughly 3 ounces of absinthe (or 3 shots) to 1 ounce of absinthe (or 1 shot). <sep> (A) [substeps] If you don't like the bitterness of the mixture, you can dilute it with 1 ounce of milk or cider vinegar instead. If you don't like the strong, milkier flavor, you can substitute nothing at all. (B) Place the absinthe in a cocktail shaker. [substeps] This drink will only last if you serve it in a cup, as the glasses will be fairly small, and will take up a lot of room. (C) For each single serving, stir in 1 teaspoon of sugar. [substeps] Alternately, absinthe can be sipped neat if you prefer the undiluted taste. (D) [title] Add the ingredients to the cocktail shaker. [step] Stir the absinthe mixture well with a cocktail spoon.
Example Output: C

Example Input: [header] How to act during a fire drill [title] Stay calm. [step] Do not panic when you hear the fire alarm. Also, it's important to stay quiet so you can hear any instructions. <sep> (A) Also, do not get caught panicking. Staying calm will help you calm down as the fire clock ticks and alarms go off at regular intervals. (B) [title] Do not attempt to push the drill to divert the fire. [step] Do not attempt to push the drill at people or leave the master fuse unattended. (C) Turning to your cell phone or microphone can be deadly! [title] Stay warm. [step] Do not wait until the fire is out to stay warm! Your body temperature can drop, but it's better to stay near a heat source. (D) [substeps] In fact, it's important to be quiet and calm the whole time the fire drill is happening, not just when it starts. [title] Treat the alert as if it were a real fire.
Example Output: D

Example Input: [header] How to accept credit cards without a merchant account [title] Understand how a third-party merchant works. [step] A third-party merchant is a company that accepts credit card payments on your behalf for a processing fee. The merchant will check the card, process it, and send you a monthly payment for the amount you are owed. <sep> (A) These payments can occur over a period of 6 months or longer, depending on the merchant's experience in customer service. By accepting credit cards without a merchant account, you can still receive 10% off a payment. (B) Credit cards are used to receive payments from third-party merchants, as well as loan recues and interest on loans. [substeps] Debt cards receive payments from non-customers, so a third-party merchant will pay for each transaction and ship those funds directly to you. (C) A third-party merchant does not accept credit cards under a " merchant account. " it accepts the credit card payments and then sends the payment over the phone to you through a special link on the merchant service's website. (D) The merchant does most of the work for you, allowing you to focus on developing your products, services and customers. [substeps] If you use a reputable third-party merchant, your customers are more likely to buy goods from you online if they know their credit card information will be secure and safe.
Example Output:
D