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 transport breast milk [title] Ask about the terms of transport. [step] If you are sending your breast milk to a company, such as a breast milk bank, ask in advance about the terms of transport. Questions to ask include : [substeps] When does the milk need to arrive? How long can it take to get there? Does the company accept milk packed with dry ice? If so, in what quantity? [title] Use fresh milk. <sep> (A) [step] Milk is changed on a daily basis. Most manufacturers now sell their new milk cold, rather than reheating it in the microwave. (B) [step] Do not store a whole breast of milk in the microwave. Instead, fill a jug filled with fresh milk and microwave it on high heat for 30 to 60 seconds. (C) [step] You can find fresh milk in some commercial stores in bulk. Be careful of doing so; it may cost a considerable amount of money. (D) [step] If you are going to ship breast milk, make sure it is fresh. Either pump it immediately before mailing, or remove the correct amount from the freezer.

Ex Output:
D


Ex Input:
[header] How to end an email [title] Reaffirm your purpose for writing. [step] This isn't necessary for short emails or quick responses to someone's question. If you wrote a long email, though, or if you are dealing with multiple subjects or concerns, add a brief concluding sentence to summarize your information or request. <sep> (A) The ending sentence will let the recipient know what you included and why. " i have an article to talk about and you want me to verify that my account is up to date " is a good example of ending an email. (B) [substeps] If, for example, you are applying for a job, you may include information regarding your credentials and experience. You can then summarize your email by writing, " based on my background and experience, i believe i would be an excellent candidate for this position. (C) Then, look at the subject line you write about to see what your concern is. [substeps] For example, you might write, " appointment. (D) For example, if you email an email about a problem, you might write: " i wanted to apologize for treating the problem such as the late termination. " [substeps] This doesn't have to be specific.

Ex Output:
B


Ex Input:
A group of men plays soccer in a sand area. a crowd <sep> (A) watches the game and applauds players riding in stadium waiting for their turn. (B) watches as several goal is made. (C) watches from the the stands. (D) watch and takes pictures as the teams walk up and down the field.

Ex Output:

C