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 choose a secondhand engagement ring [title] Visit a respected local jeweler. [step] Some jewelry stores carry a selection of secondhand or vintage engagement rings. Research local jewelers to find a trustworthy shop in your area. <sep> (A) Use the store's contacts to carefully inspect the rings and design design, but ask the jeweler if there are any indication that they intend to sell them. [title] Ask friends or family members who have similar ring engagement rings. (B) Alternately, ask your friend or family representative if they know of any reputable appraisers in their area. [substeps] Different shops will be exclusive, so ensure that the jeweler you seek matches your ring to that of your friend or family member. (C) [title] Look for a good price and type of ring you want. [step] Don't be picky when choosing online. (D) Consider how long the business has been open and ask friends or family if they are familiar with the business. A reputable jeweler will typically have an in-house gemologist and repair and resizing services.
Example Output: D

Example Input: [header] How to clean a cast iron stove [title] Place an old newspaper on the ground in front of the stove. [step] Do this as a protective measure before you begin scooping ashes out of the stove, as they are liable to drop onto the ground. A newspaper will make cleanup much easier. <sep> (A) [substeps] You might even want to splash some cold water over the newspaper, so the water completely freezes around the newspaper. A drop of lemon juice can also help. (B) [title] Pour about a tablespoon of salt into the newspaper you have saved. [step] Add lemon juice and shake off the salt. (C) [title] Use the newspaper to wipe and scrape any soot out of the cast iron burner. [step] Do this several times until any soot is gone. (D) As you're spreading the newspaper, open the air dampener so that any ash stuck to it will fall into the firebox. [substeps] The air dampener will be a small knob on the front of the cast iron stove, that you should pull outward to open.
Example Output: D

Example Input: [header] How to behave on irc [title] Realize why you are banned. [step] You may already know what you have done, so think about whether your choice was a good or bad one. Remember, you're the one who is responsible for your actions. <sep> (A) Consider if it was a bad thing or if the reprimand they gave you you behaved nicely. [substeps] If a reprimand isn't required on irc, you're not a bad person at all. (B) If you fail to do something, you will be grounded for it. Always remember that ingrouten (" heat ") is the kelvin element. (C) [substeps] Low ratings are common in most irc workplaces, and this can be part of the reason people are banned. [title] Perform all the necessary tasks for a " walkaway. (D) [title] Don't evade an irc ban. [step] Take the punishment into account, and respect the operator's decision.
Example Output:
D