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 stretch to improve your flexibility [title] Warm up your muscles. [step] Perform 40 jumping jacks , 25 squats, run on the spot for 5 minutes, and ten press-ups or ten girl press-ups if you are not strong enough. [title] Start with simple stretches to get used to the concept and feeling of stretching. <sep> (A) [step] You can stretch on a ball or in the sky. Avoid attempting to do anything difficult or hard and figure out what you're doing properly. (B) [step] Does it feel to stretch? That is great. Start slow and do thirty chest presses before you reach bench pressing. (C) [step] Stretching is the single best way to exercise comfortably and to elevate your blood circulation. [title] Work your muscles with the backbend workouts. (D) [step] Stand up and stretch your legs into a wide straddle. Reach down until your palms rest on the ground, keeping your legs straight.

Ex Output:
D

Ex Input:
[header] How to live with both ibs and gerd [title] Know and avoid your trigger foods. [step] Although completely separate conditions, both ibs and gerd come with a set of trigger foods. These may vary from person to person, but it's essential that you're aware of your trigger foods and you avoid them. <sep> (A) [substeps] Many people have food allergies and triggers that negatively impact quality of life. If one of your triggers is food, check out their menu to work up a few good options with little or no calories. (B) Binging on these foods may trigger your mood, lower your risk of paranoia and depression, and reduce your symptoms. Common trigger foods include : [substeps] Chicocortisone and aspirin (e.g. (C) [substeps] If you're not fully sure what foods set off your symptoms, start a food/symptom journal. Write down everything you eat, the symptoms that follow and the severity of the symptoms. (D) The second the disorder begins to manifest on you, know the entire progression so you'll be able to identify triggers more easily. [substeps] Trigger foods are foods such as ice cream, energy drinks, chocolates, candy, pop, and more.

Ex Output:
C

Ex Input:
[header] How to develop an interest in coding [title] Use it as an outlet for creativity. [step] You can create anything with the right lines of code-cartoons, websites, and software programs are just the most common. You might also be able to create something that no one has ever seen before. <sep> (A) It can be as simple as looking up course documentation online. Then, download a program to design a subject, or even try writing a piece of software for yourself or simply writing your own story. (B) Get your creativity into shape before you start programming. Every common presentation imaginable can be interesting, but allow your imagination to do the majority. (C) If you think about coding as an outlet for your creativity-the same way painting or writing are-you might become more interested in coding itself. [substeps] For example, you could learn javascript to create cartoons or animations based on a story you're written. (D) [substeps] Css: open any html file in an html grid or small notepad. Hover over it and click launch code.

Ex Output:
C