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: This video gives the audience a step by step guide of how to make a pikachu cake. first <sep> (A) you pour 1-2-3 liquid sugar in two rople carmes and swirl it around in 1-1 dirt and pour it into large black buckets. (B) the person puts the chocolate mix in the sub, then spreads the lemon juice and she puts the company name and logo. (C) , put a plain chocolate aioli cake mixture in the small white bowl, then have a cherry and a y shaped wedge of lemon, is added in the cup and some attention begins to be taken to the present preparation, put a pineapple as it is representing strawberries and put the cherry on top the cake to the end of the cake. (D) , he searches the internet to find a pikachu character's face to fit the cake he's making.
Example Output: D

Example Input: [header] How to play sepak takraw [title] Set up the court. [step] The court is rectangular and measures 13. 4 meters by 6.1 meters, approximately the same size as a badminton court. The net is in the middle of the court and should be 1.52 m high. <sep> (A) [substeps] The court runs on one side of the lower part of the court. It is normally used between three or four rows, to remove knee-guards and to protect the entire court from any further slugs (skeletons or other animals). (B) On the inside of the court, you'll see rows and rows and elevated 18 x 19 meters by testing a platform. If you don't expect to play every day, you'll still be able to play as much as you want. (C) A service circle should be drawn 3.05 m from the back line and 2.45 m from the sidelines. The radius of the service circle should be 0.3 m. (D) You should place your face-plates face down on each side of the court, like you are a goldfish. You can also drop your finger or both of your hands on the court's edge and play.
Example Output: C

Example Input: [header] How to do stretching exercises at the computer [title] Depending on your dress for the day and public exposure (slacks work best for this exercise as opposed to a skirt or dress). [title] Bend the right knee and bring the knee to the chest. [title] Hold, grasping with both hands and pull up to the chest holding for five seconds. <sep> (A) [step] Go to the left and do the same thing with the left knee to the chest and hold with both hands for five seconds. [title] Do five of these, alternating each leg so that you have done ten each. (B) [title] At this time, moving forward, move to right to motion the right knee towards another leg joint. [title] Hold for five seconds without pulling back which will direct the leg to go forward, usually a daredevil. (C) [title] Stop once you feel the stretch in your knee muscles. [title] Relax your leg muscles (come fully upright) with a good smile on your face. (D) [step] Feel your heart rise and contract as you bring the knee up. [title] Slowly lower your right knee so that your right hip and your body weight is balanced, then bring both knees up.
Example Output:
A