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 find the number of a blocked call [title] Get an private branch exchange (pbx) account. [step] One option is asterisk, a free, open source software. Another is switchvox. <sep> (A) This will also work better than 200 blackwire. If you buy one, it will work with the same account ($ 0.11). (B) The pbx is considered to be a free exchange. While this service typically does not have much use for a desktop account, it gives you access to many anonymous call accounts. (C) A pbx converts your computer into a telecommunications device and will allow you to manipulate incoming call data to identify blocked callers. [substeps] Before embarking on this method ensure that you thoroughly understand the technical challenge it presents and the potential financial burden it incurs. (D) Without switchvox here you are on better business. No other option is available to get a contact number from an online website.
Example Output: C

Example Input: [header] How to go dairy free and stay healthy [title] Make changes to your diet slowly. [step] Start by making small changes to your diet, removing dairy slowly and over time. By making small changes that you can live with, you will find it easier to sustain this new diet that you are implementing. <sep> (A) [substeps] The purpose of these changes is to reduce your current sugar intake or processed food consumption, so don't put the drastic changes in your diet into perspective. If you go dairy free, you'll start not eating or making overly processed foods. (B) This will help to motivate you to start eating healthier. [substeps] You may need some additional input of what you should change every day. (C) [substeps] Don't start a new diet that increases your risk for developing some form of obesity. This can reduce your metabolism and enables you to control your weight. (D) [substeps] By gradually decreasing your consumption of dairy products, cravings may not be as intense. If you are already aware of the dairy products you currently consume, remove the dairy products that you can live without.
Example Output: D

Example Input: [header] How to get married without parental consent [title] Determine the age of majority in your state. [step] The age of majority is the legal term for becoming an adult. It is the age at which you no longer need parental permission for things, such as getting married. <sep> (A) In most states, the age of majority is 18. The following states have a higher age of majority: : [substeps] Alabama-19 mississippi-21 nebraska-19 [title] Distinguish the age of majority from the age of consent. (B) [substeps] In most states, you must be under a certain age, for instance 18. How long you wait for a judge to review your consent will depend on various factors. (C) This age may depend on the amount of time you had in the previous state. To find out what age the majority is in your state, visit the state bar website. (D) Majority orders of order order are supported by a state statute of limitations for those that cannot prove parental consent. Since even if you are a clone of a traditional child and wish to be an adult, you still need an entity with full legal name.
Example Output:
A