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 learn to speak afrikaans [title] Take an introductory afrikaans class. [step] Enroll in an introductory class at a local community college, or at a language learning center. You can also find organizations dedicated to language learning online. <sep> (A) Online classes are convenient because you can learn at your own pace. [substeps] Taking an introductory class will help you develop a solid foundation in the language. (B) Online afrikaans are very easy to learn, and they are easy to translate. [substeps] You can get an introductory afrikaanic class at a language learning center. (C) [substeps] The language federation at the children's development center maintains a directory of all language learning organizations across all states. You can also find native afrikaans reading online through the font bar at the bottom of the page or clicking " language group " in the top right corner. (D) [title] Immerse yourself in afrikaans from a young age. [step] Select a language you are receptive to and that you truly understand.

Ex Output:
A


Ex Input:
[header] How to recycle ice cream containers [title] Inspect the container for recycling info. [step] Check the packaging for any labels that indicate whether or not it is recyclable. However, be aware that these only provide general information and do not reflect whether your community is equipped to process this container. <sep> (A) [title] Obtain personal information such as your name, address, work address, phone number and any other identifying information you might be willing to share. [step] Check to see if you are allowed to remove many of these labels with your children, with the exception of paper bags. (B) [substeps] Not all people in your community will need to take the container to a recycling facility, so always check the interior or exterior of your container carefully before bringing it to a recycling center. Many parts and materials might get damaged when you tip the container, resulting in uneven storage. (C) [substeps] If your container was used for a beverage beverage, it's worth noting that many local beverage shops are still accepting recyclable containers. If your container was used for a beverage beverage, it may be better to recycle it again to get some fresh, whole varieties to replace the old one. (D) Also keep in mind that a lack of labels does not necessarily mean that the container can't be recycled. Labels to look for include : [substeps] Widely recycled: this type of container is recycled by at least 75% of municipalities.

Ex Output:
D


Ex Input:
[header] How to do grade 9 mathematical processes [title] Do operations with fractions. [substeps] Add and subtract. Fractions can only be added, or subtracted, if they have the same denominator, otherwise the answer is incorrect. <sep> (A) As you like to think, the outcome is the same, even if fractions are separated differently. For example, the number 3 expressed in fractions is 52. (B) Add and subtract fractions from fractions to mathematical processes as these variables are formatted in the ways shown before. For larger fractions, add fractions to the fractions and subtract fractions from the fractions to multiplying the fraction. (C) 1 fraction equals 3, which is going to yield no equal part in the formula. This is all fractions at four cups. (D) For example , 2/5 + 1/5 = 3/5. To add or subtract fractions with different denominators, the first step is to find the lowest common denominator.

Ex Output:

D