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". 

Example Input: [header] How to prepare for ielts speaking test [title] Relax and speak as confidently as you can. Candidates who are not able to participate fully in the conversation * may not achieve their potential band score. [step] This may be because they haven't been able to demonstrate the level of language they are capable of producing. <sep> (A) This is why in order to start impressing new people you'll have to start communicating clearly and become relaxed in front of new friends and family. [title] Help the staff in every conversation about the band's. (B) Chances are they have not gotten the chance to have the opportunity to prove themselves. [title] Get to know your supervisors on a regular basis. (C) [title] Learn how the speaking component is assessed : [step] The aim of the test is to assess your ability to communicate effectively. The interviewer considers this ability in four different ways : [substeps] Fluency and coherence: this measures your ability to speak without too many pauses and hesitations. (D) You are simply not strong enough to produce the best sound but must cultivate more. If you are too nervous to speak clearly you'll be able to unintentionally undermine the composition of your speech.
Example Output: C

Example Input: [header] How to request a desktop page on an idevice [title] Visit the mobile version of any website. [title] Tap the address bar (url bar) once. [step] This should open up the page showing the list of bookmarked sites from your iphone's list named " favorites " (which is a subfolder of your bookmarks). <sep> (A) [title] Swipe down from a cleaned up area of the screen (where no favorites icons are showing) until two other options will be seen. [title] Tap on the " request desktop site " option. (B) [title] Tap search for a box in the " search " popup on the upper right section of the screen. [step] Tapping inside might lead to more links, while scrolling down might ask for more. (C) [title] Tap on an app with a picture of a star. [step] It should be the icon with a star inside on the home screen of a healthy smartphone or tablet. (D) Click the x symbol in the middle of the keyboard to open it. [substeps] The selected search engines bar comes up on the right side of the page after you click on the button, below a field of random options.
Example Output: A

Example Input: [header] How to do exercises that enhance good posture [title] Try the mountain pose. [step] Even though it looks like you aren't doing much, this exercise is very helpful in improving posture and balance. [substeps] First, stand with your feet together and your arms at your sides press your weight evenly across the balls and arches of your feet make sure you are taking deep breaths and focusing on the present. <sep> (A) Then keeping your face tilted slightly forward press the weight of the weight of your body towards your toes. The mountain pose may sound challenging at first so try to make it fun and easy to do. (B) Raise your shoulders until your arms are completely straight, hold that position for 15 seconds, then lower your shoulders to the ground. Do three to five sets of 10 to 15 reps each. (C) Then, release all your breath and squeeze it hard through your nose. Do 10 to 15 repetitions of this exercise for 30-40 breaths. (D) Hold this position for 10 to 30 seconds [title] Do the kneeling shoulder opener. [step] This is a yoga exercise focused on stretching your upper back muscles.
Example Output:
D