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:
There's a woman sitting on a cozy chair with her two cats next to her, knitting a black yarn hat. the black cat <sep> (A) wakes up from its sleep, goes over and rubs on the woman several times and one person in the back grabs his cat, drinks some water and finally goes back to sleep. (B) is now sitting on a silver plate, one paw quickly getting knitzed. (C) gives a series of pats on the brown and blue body, while the black cat tries to stand up. (D) is sitting right next to her and playing with the yarn while the brown cat is watching them.

Ex Output:
D


Ex 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.

Ex Output:
D


Ex Input:
[header] How to determine your dress size [title] Measure your bust. [step] You'll need to measure the fullest part of your bust to get the proper measurement. Make sure that the measuring tape (a dress maker's soft tape measure for preference) goes under your arms. <sep> (A) Place this tape on your small bust with a straight edge just below the bust measurement. [substeps] If you don't have a dress maker but the measuring tape came with you, then you may want to print out the measurements and letter the proper delivery address. (B) You should feel the circumference of your bust underneath the arm holes. If you have an underbust, you'll usually need to measure the upper part of your chest, under your bust and above your breasts. (C) [substeps] Keep the measuring tape snug but not too tight. If you do it too tight (if your bust is popping out over the tape) then you'll get the wrong measurements and your dress won't fit properly. (D) Measure the length of your neck from top to bottom and side to side. [substeps] If you have a noticeable bust, the dress maker's soft tape measures out your girth.

Ex Output:

C