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". 

Input: Consider Input: [header] How to improve your leg flexibility [title] Start off with the " easy pose. [step] " sit on one or two folded blankets with your legs stretched in front of you. Bring your legs in and sit cross-legged, and make sure your knees aren't at a level any higher than your hips (sitting on the blankets will help with this). <sep> (A) Lift your feet (they should be positioned vertically in front of you with your feet shoulder width apart) off the blankets. [substeps] Get slightly more rigid by taking big strides forward and focus on the floor around you. (B) Do the pose for 4 to 6 sets of 10 repetitions. [substeps] You can use your foot in this pose if you want to strengthen your leg muscles. (C) [substeps] Many people find it hard to do a basic pose with their legs crossed before they can complete yoga poses like the " leg dog " pose. This exercise can be coupled with the' loom pose' to improve your leg flexibility. (D) Don't let your chest sink down: hold your chest out and pull your shoulders back. [substeps] Hold this pose for several minutes, and feel the stretch working through your quads, hips, and lower back.

Output: D


Input: Consider Input: [header] How to unblock a toilet when you have no plunger [title] Cover the end of a mop with a plastic bag. [step] Pull the bag over the end of the mop. Then, tie it off or secure it in place with a rubber band. <sep> (A) You can also use a rag or a toilet cloth to help secure the bag if you don't have a mop. [substeps] Try using empty containers to provide more protection. (B) After securing the handle of the mop, throw it away. [title] Turn on the water faucet. (C) [substeps] Discard any waste that falls from the end of the mop. [title] Use the bucket or bowl to catch any urine that spills out. (D) [title] Plunge your toilet with the mop. [step] Use a forceful in and out motion like you would with a normal plunger.

Output: D


Input: Consider Input: [header] How to list references in a cover letter [title] Select the people you think would make good references. [step] Generally companies will ask for two to three references, if they ask for any references at all. Just in case, make a list of four to five people you think would be good, on the off chance that one of the people you select does not want to be a reference. <sep> (A) [substeps] People could include former employers, supervisors, and people who worked closely with your company. Most employers and supervisors do not want references that are beginning to devalue the company, so think about who your potential references are. (B) The more references you provide, the longer your cover letter will stay. [title] Dress professionally, don't wear shorts. (C) [substeps] You should still include the references in your cover letter. For example, if you need references from two previous people that worked in the same company, pick three people over three, and work backwards on the list. (D) You should pick people who have worked closely with you in a school or work setting. Choose former supervisors, employers, coordinators, or teachers or faculty members who can share information about the positive abilities, skills and qualifications you have to offer.


Output: D