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". 

[Q]: [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.
[A]: D


[Q]: [header] How to be a bondi lifeguard [title] Contact a surf life saving club in or close to bondi. [substeps] Just about anyone can volunteer to be a lifesaver at sydney surf life saving clubs. Surf clubs will be happy to chat to you and tell you what is required if you want to be a volunteer lifeguard. <sep> (A) [title] Find the best and safest surf-life saving club in your area. [substeps] Surf lifeguards live off the beach, and they will probably need two-way water transportation, quite possibly a car or bicycle. (B) Many will provide all the training you'll need. Call them, check out their websites or simply head down and chat to them. (C) This can be achieved by attending the lifesaving club on the first day, then going on to other lifeguard's clubs along the way. If there are lifeguards at any of their lifesaving clubs, talk with one of those lifeguards. (D) This is the only legal aspect of volunteering. They will be able to suggest hours of work that are perfect for you or your specific lifeguard job.
[A]: B


[Q]: Several clips are shown of people walking around as well as riding down a snowy mountain on tubes with people pushing them from behind. several more shots <sep> (A) are shown of people riding down the mountain on tubes and performing various jump roping acts. (B) are shown of people riding up the hills, grabbing their tubes, as well as riding down the mountain and laughing with one another. (C) are shown of people having drinks and speaking to one another as well as more shots of people riding down forested mountain. (D) are shown of people riding down the mountain as well as riding the tubes into a garage surrounded by clouds and snow.
[A]:
B