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". 

[Q]: [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.
[A]: D


[Q]: [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.
[A]: C


[Q]: [header] How to respond to a job offer [title] Respond to the job offer. [step] Receiving a job offer requires you to respond, whether or not you accept or reject the position in the end. Keep the response positive and inform them that you will return your final decision by a certain date. <sep> (A) [substeps] Remember, you need to have your answer right away. Don't wait until an opportunity presents itself to brainstorm how to respond. (B) [substeps] Be as frank and consistent as possible about the job offer. Nod politely to the person offering the offer. (C) [substeps] Respond promptly, but ask for a few days to consider and review the position. Respond using the same method you were contacted by. (D) This could be a number of weeks, months, or even years. [substeps] You will likely hear the following news in the meantime: " i know this job is quite challenging.
[A]:
C