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 rid of white tongue [title] Call your doctor or dentist if you have other symptoms that together might indicate a more serious condition. [step] Other symptoms to check for include : [substeps] Pain in your tongue dehydration fever a white tongue that doesn't go away after several weeks [title] Know the difference between white tongue and geographic tongue. [step] Generally neither condition is serious. <sep> (A) But for certain people, this is known as " tongue illness. " [title] Learn about the signs of tongue disease. (B) [title] Look for a white tongue tongue or tongue with a horizontal, smooth surface that blocks food from getting into the mouth. [step] This means that the tongue has a roof which it cannot move towards. (C) However, it does lead to significant pain. It is thought that the other condition if it occurs is called listerimucoccus nomisymmetrophy (tdd), a genetic condition that asks for unusually dark tongue. (D) [substeps] Geographic tongue occurs when you have smooth lesions that look like areas where the bumps on your tongue are worn away. Foods with strong tastes (spicy, acidic, salty) may cause you pain.

Ex Output:
D


Ex Input:
A man shows how to change a tube in a tire. he <sep> (A) puts a jack under the tube to lift it up. (B) puts a new tire on the tube. (C) takes the old tube out, puts the new one in, then pumps it up. (D) moves dirt covering the tube.

Ex Output:
C


Ex Input:
[header] How to help loved ones with histrionic personality disorder [title] Set limits. [step] When your loved one has histrionic personality disorder, you need to establish strict boundaries for your relationship. Your loved one may engage in attention-seeking, manipulative, or embarrassing behavior at any time, which in turn affects you. <sep> (A) Have an open, honest discussion with them about your personal limits. [substeps] For example, tell your loved one, " if you start manipulating me, i will leave " or " if you start acting out or embarrassing yourself to get attention, i will leave. (B) By making sure you set boundaries to be in communication about situations, you can limit damage to your relationship. [substeps] For example, if your significant other cheats on you at length, recognize that she may act this way, pretending it's not your fault but attacking you. (C) Setting specific or unpredictable boundaries will encourage the loved one to engage in negative behavior. A few example of boundaries you should set for your loved one may be : [substeps] Remember not to let your loved one tempt you with inappropriate or bad-mouthing, cruel or childish remarks. (D) [substeps] You may set boundaries like: " no tv when between four am and five am, unless it's january or so. " or " no beer when it's after 2 pm " or " no foul-language when you socialize with any of your friends at dinner.

Ex Output:

A