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 spot an online scam [title] Ask yourself: do they require you to pay money up front? [step] If they are requiring any sort of up front payment to use their services, it is almost always a scam. Many of them will claim that it's for the cost of training, etc. Most of that is just lies. <sep> (A) More often than not, the scammer will take your money and run. [title] Ask yourself: do they promise that you will become rich overnight? [step] Let's face it. (B) They may also require you to pay them a fee to do the work of the scam. [title] Start by taking note of the offer terms. (C) If you fail to pay them back, they won't actually use the services they have. Sometimes, scammers simply want to get their money from you to start their scam. (D) Do not discuss this with anyone else, unless you know for sure that it is indeed a scam. [title] Determine whether you're being harassed.

Ex Output:
A


Ex Input:
[header] How to do indian meditation [title] Sit on the floor or in a chair. [step] Find a place where you can sit comfortably for at least ten minutes. It could be indoors or outside. <sep> (A) You could even wear the same socks or wear the same footrest. Although there are many practicing yoga, it is not truly necessary to practice it. (B) Don't meditate in a bad home, as, your home will be home to a chronic and pushy person, and it will likely get tired again. [substeps] If you can, find a warm place that will allow you to sit comfortably for at least 30 minutes, preferably in a room that is not hot or stuffy. (C) [substeps] You could also hold a prayer or light candle. If you can't find a comfortable place in your home, try reading a magazine or doing a search for guided meditation websites. (D) What matters most, however, is that it is quiet and free from distracting noise like music, television, or people talking. [substeps] Not all noise is bad in the vipassana tradition.

Ex Output:
D


Ex Input:
[header] How to remove a tongue stuck on frozen metal [title] Don't panic! [step] The worst thing you can do is rip your tongue off the metal in a panic. This could give you a serious injury. Instead take a moment to think about your situation clearly. <sep> (A) Before doing anything, you should be sure if you are equipped to handle a tongue stuck on metal. [substeps] You may be able to get a towel or even a cloth between your tongue and metal if you are struggling to locate the tongue. (B) You're probably conscious by now but know that when you're actually in a panic you can handle the possibility of scraping or ripping your tongue off. You only have two options; open your mouth. (C) Assess whether you have someone near who can help you. [substeps] If you have someone with you, make sure they know that you are not joking and that your tongue is really stuck. (D) Luckily, your tongue won't be stuck in the jaws of your object, especially if you've bitten it. [substeps] Go into your head and think about what the tongue and the object are both able to do.

Ex Output:

C