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:
A police officer is riding a horse down the street very slowly. many bystanders <sep> (A) cheer as he gets closer. (B) are walking by, cars are passing and casually moving along. (C) are standing up nearby. (D) join in to help him, and several other cars come along.

Ex Output:
B


Ex Input:
[header] How to eat a maryland blue crab [title] Check to see if the blue crab is in season. [step] The maryland blue crab can be found fresh or pasteurized (sealed in cans and heated to kill pathogenic organisms) throughout the year, but it is not in season all year long. The crab season in maryland starts in april and ends in december. <sep> (A) [substeps] Crabs are usually less expensive at the beginning of the season. Crabs harvested in june through august are the most flavorful. (B) However, it may also be in the winter time, if temperatures are below freezing. Check the crab's growth schedule to make sure that it is in good shape. (C) [title] Buy a crab that is not in season through meat and seafood market. [step] When all meat gets picked up, the crab goes into season. (D) [title] Purchase crab with a cold peg before your meal. [step] A cold peg nips off the bottom of the crab's shell, so check carefully when purchasing it.

Ex Output:
A


Ex Input:
[header] How to write a theme essay [title] Read the essay prompt carefully. [step] A theme essay usually responds to a specific prompt given to you by a teacher or professor. Most essay prompts will ask you to identify the theme, or the overarching message, in a text. <sep> (A) Specifically, ask about your thesis or thesis. [substeps] Request a specific thesis statement for the essay prompt. (B) Look at the terms used in the prompt and highlight keywords or important terms. This will help you identify what you need to address as you write your essay. (C) These prompts will prompt you to provide an overall outline, a general outline, and finally a detailed overview of your topic, providing information specific to your subject. [substeps] Read the prompt for a little more information. (D) Start by reading through the prompt you're presented with. [substeps] Some themes, like love and pleasure, require a specific type of prompt.

Ex Output:

B