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 get your boyfriend back when he broke up with you [title] Try to understand why the relationship ended. [step] Was it a fight, cheating, or did you feel that he slowly lost interest? Understanding why he broke up with you will help you understand if trying to get him back is the best thing to do. [substeps] Think about his behavior in the weeks before the breakup. <sep> (A) Do you recall his comments funny, flirty, or romantic? Try to lighten up the way he treated you that day. Maybe he asked you to dance, for example. (B) If he seemed to have moved on by the time you were together, you might have a rough time dealing with this together. [title] Look for traces of him doing what he used to do. (C) This will help you determine if the relationship can be saved. If it was a sudden breakup resulting from a disagreement, then he just may need some cooling off time. (D) How you feel about his behavior during the months after the break up is probably confidential. Even if the relationship ended, how you feel now about him is entirely up to him.

Ex Output:
C


Ex Input:
There is a black dog and a white dog jumping around the person raking the leaves. The white dog is trying to bite off the rake. both the dogs <sep> (A) are walking on the grass and one of the dogs is falling. (B) are standing back on his hind legs trying to get out of the rake. (C) are playing around the man raking the leaves, trying to bite the rake. (D) do this trying to be very nice.

Ex Output:
C


Ex Input:
[header] How to control green pond water problems [title] Have only one inch of fish per ten gallons of water. [step] Your fish can affect the pond water quality. First of all the number fish should be according to the pond size because the organic waste will be more with more fish. <sep> (A) Ideally you should have one inch of fish per ten gallons water completely. You should pay attention to the space you have in the pond and new fish you choose. (B) If you'd like, you can choose just one fish per tank. In fact, if you added more, then a total pond size of seven fish equals a while. (C) Your pond water should be the most saturated you can get. You may have at least an inch of water per ten gallons. (D) [title] Avoid direct sunlight as green water is due to small algae cell. [step] When these small algae cells come in contact with sunlight produce algae by photosynthesis.

Ex Output:

D


