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 give a girl a kiss she will never forget [title] Brush your teeth! [step] Nothing worse then kissing someone that has halitosis breath. [title] Make sure to take a deep breath and clear your mind. [step] Try to just focus on the person that you are planning on kissing. <sep> (A) [title] Make sure you are alone! [step] If the girl you have kissed is one of your friends, like an old friend, then make sure you are alone. It's best to just sit somewhere discrete, and not invade anybody's space. (B) When you have the kiss set, kiss her. [substeps] Once you both have made steady eye contact, look up and smile! Make sure your smile is sincere so it won't come across as forced. (C) [title] Slowly lean in until your lips touch. [title] Keep lip contact soft and gentle in the beginning. (D) This could be your mom, best friend, an acquaintance, or anybody. When you are done brushing your teeth, repeat in your head.

Ex Output:
C


Ex Input:
A man demonstrates how to walk across and navigate a slackline in a grass courtyard in front of apartments. the man <sep> (A) demonstrates how to traverse a low brick fence on a residential street. (B) walks slowly across the slackline while talking and stopping to talk to passerbys. (C) stands on a slackline balancing himself with his arms before the clip cuts to him interviewing. (D) poles backward, glasses on and he begins to walk while holding the slackline while walking across the courtyard.

Ex Output:
C


Ex Input:
[header] How to make a traction splint for a fractured femur [title] Check the abc's : [step] Airway, breathing and circulation. Trauma significant enough to snap a femur is likely strong enough to cause other issues, possibly even rendering the victim unconscious. If this is the case, you must make sure he has an open airway, is breathing (with or without intervention) and he has a pulse. <sep> (A) If not, make sure the injured person is wearing comfortable clothing or is cold. [title] When you hear a popping noise, you will make a snap in your breathing tool to be taken care of. (B) [title] Place the injured person on a wet towel. [step] Prepare a paper towel with an absorbent wipe on it. (C) [title] Apply traction and maintain traction through the entire process. [step] This is going to require an additional rescuer. (D) If not, contact emergency services or go to the hospital. What are the appropriate airways? If first, call 911.

Ex Output:

C