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: This video gives the audience a step by step guide of how to make a pikachu cake. first <sep> (A) you pour 1-2-3 liquid sugar in two rople carmes and swirl it around in 1-1 dirt and pour it into large black buckets. (B) the person puts the chocolate mix in the sub, then spreads the lemon juice and she puts the company name and logo. (C) , put a plain chocolate aioli cake mixture in the small white bowl, then have a cherry and a y shaped wedge of lemon, is added in the cup and some attention begins to be taken to the present preparation, put a pineapple as it is representing strawberries and put the cherry on top the cake to the end of the cake. (D) , he searches the internet to find a pikachu character's face to fit the cake he's making.
Example Output: D

Example Input: [header] How to calculate a light year [title] Define the light year. [step] A light year is a measure of distance equal to how far light travels in one earth year. Because distances across the universe are so large, astronomers use light years. <sep> (A) However, they can also be determined by dividing by a distance. [substeps] Some light years are used year-round. (B) For light year 2014, the main determiner is the sun. In the light year, the world is filled with light bulbs. (C) Without light years, discussing the distance between two stars would require the use of large, unruly numbers. [substeps] Another measure of distance you may come across when learning astronomy is the parsec. (D) [substeps] There are two kinds of light years: day and night. The two types of light years are known as night and day.
Example Output: C

Example Input: [header] How to convince your family you only want a small wedding [title] Think about why you want to have a small wedding. [step] Being clear on your reasons for wanting to have a more intimate or low-key wedding will help you to explain them to your family. [title] Define what your " small wedding " is going to be. <sep> (A) [step] Emphasize your wishes regarding the venue of the wedding and the size of the space within or surrounding it. [substeps] Explain that the venue has to be larger for marriage to occur. (B) [step] This will help you to answer any questions your family may have about what your wedding will be like: who will and won't be invited, where the wedding might take place, what the reception will be like, etc. [title] Pick a relaxed time to talk with your family. (C) [step] Does it have to be an extravagant one? A very intimate one? [title] Define what you want for your wedding party. [step] This will help to give your guests the idea that a small bridal rehearsal is the biggest distraction from the wedding. (D) [step] This is something you have to do before deciding what to do. Many people think wedding officiants and videographers are " super-professional " because of the amount of practice they have with the ceremonies and organizations they perform.
Example Output:
B