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". 

Ex Input:
[header] How to choose parts for a budget gaming pc [title] Pick out a processor (cpu). [step] Choose your cpu by looking at five things-performance, speed, cores, price, and durability. In general stick to i5 and ryzen 5 processors if you have a budget between $800 and $1500. <sep> (A) [title] Choose a processor that has a floppy protractor. [step] Floppy processors are these are tiny devices that only have one or two critical parts. (B) Since charging for a smartphone or gaming console has some extra impact, you should choose the fastest processor possible. A 350 watt processor will feel like a cheap one. (C) 8.2 ltv or blu ldb10 cores are other common cheaper choices. [title] Pick what you are absolutely listening to. (D) If you have a lower budget, buy a pentium, ryzen 3, or fx series processor. [substeps] Look at benchmarks and reviews for your selected cpu and all components you want to buy before you buy them to avoid ending up with a poor component.

Ex Output:
D


Ex Input:
[header] How to download microsoft office 2010 [title] Visit the office 2010 download page. [step] Microsoft office can be legally downloaded from microsoft's website as long as you have a valid 25-character product key. To find it easily, search for " using your office 2010 product key ". <sep> (A) [substeps] If you don't have a csso account, you may have to create one. You will need to verify your identity with microsoft office 2010. (B) [substeps] Office 2010 is no longer available for purchase or as a trial from microsoft. You can still buy boxed copies from other retailers. (C) [substeps] Leave one or more lines between the tabs on the homepage and the window you will be downloading to provide information about what you want to download. [title] Open the primary file you wish to download. (D) [title] Enter the windows code to install microsoft office 2010. [title] Click on the save file to run the pc then re-open microsoft office 2010 now to continue.

Ex Output:
B


Ex Input:
[header] How to live in thailand [title] Acquire the appropriate documents for entry into thailand. [step] Apply for a passport if you do not have one. A passport is a form of identification that verifies your citizenship in a country and allows you to travel to other countries. <sep> (A) The application is free, although you can need to fill out checks and other paperwork online. This type of passport can be obtained online in thailand through the thailand return site. (B) [substeps] Check to see if you need a visa for entry into thailand. This is required for visitors from some countries. (C) Make sure your passport is up to date, and that you have not changed your passport price or expiration date, although many countries are willing to put up a new passport. [substeps] Check with your local tourism agency to make sure you have the correct passport identification number before entering thailand. (D) [substeps] You can purchase a passport with a resident visa. You can purchase a tourist visa if you do not have a resident visa.

Ex Output:

B