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". 

Input: Consider Input: [header] How to lance and drain a blister [title] Assess the blister before choosing to drain it. [step] Not every blister needs to be lanced. In fact, some experts recommend that you should only drain blisters that are exceedingly painful, in weight-bearing or high-contact areas, or larger than 0.8 inches (2 centimeters) in diameter. <sep> (A) [substeps] If the blister is intact and manageable, try to keep it intact. Apply a piece of moleskin, adhesive felt, or tape. (B) In these instances, you need to check the blister to determine if it needs a leak-proof drain. [substeps] See the " how to drain a blister " section of this article for instructions. (C) [title] Make a decision whether or not to drain the blister. [step] If the blister is very painful, medical sterilization is an option. (D) [substeps] There is no one right way to do this, so you have to be sure that you have the right technique. It is not as easy to clean a blister as to rinse with water and applying a sterile dressing.

Output: A


Input: Consider Input: [header] How to use psychology to close more sales [title] Give something for free. [step] The principle of reciprocation is a psychological phenomenon described by dr. robert cialdini, an expert in persuasion. According to this theory, it is part of human nature to feel obligated to repay debts of all kinds, big and small. <sep> (A) To begin this process, ask yourself if you really are willing to sell something for free. If you are willing to throw in the money, then you are probably willing to take credit. (B) You can't force anything on someone else. [substeps] If you " feel " obligation to a friend or loved one, give them something to ask you " if i use this method, what will happen? " [title] Assemble your argument. (C) If someone receives something free, they will feel a psychological urge to purchase a product to pay you back for your kindness. [substeps] Offer a free trial period, a sample, or even a pleasant experience. (D) To do this you must pay for or at least accept the full offer. After that you must devise a plan of compensation.

Output: C


Input: Consider Input: [header] How to balance power in conflict [title] Engage in dialogue. [step] Conversation is key in any sort of power balancing situation. Be clear about what you want and what the other person wants. <sep> (A) It's normal to disagree at times, without really having anything to say. Remain relaxed and speak in a calm voice as if there's no charge in the conversation. (B) Don't brush each other off or make assumptions about where your other person stands. Don't judge each other based on what he or she is doing, what is acceptable to say, etc. (C) Stick to facts and avoid insinuating or stating that the other person is wrong or that they're causing a problem. Always focus on the matter, desired behavior or outcome, and not on the personal traits of another. (D) Strive to be direct about what you want in a conflict. [substeps] For example, you can start the conversation by saying something like, " i'd like to resolve my disagreement on the lighting issue, but i'm having trouble staying on schedule.


Output: C