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: Man is unning wearing stilts in a skaet park. another man <sep> (A) is intoeyete a line ofdifferent people playing stilts on the park. (B) is jumping along with the first man in the skate park. (C) is unhing a calf thnke its in stilts starting to run with them. (D) is unrolling accordions.
Example Output: B

Example Input: [header] How to have healthy kidneys [title] Stay hydrated. [step] Staying properly hydrated is one of the best ways to keep your kidneys healthy. Without adequate water, your kidneys can lose some of their ability to filter your blood, and may even become damaged over the course of your lifetime. <sep> (A) [substeps] Drinking water helps your kidneys flush sodium, urea, toxins, and waste out of your body. By staying properly hydrated, you can significantly reduce your risk of developing chronic kidney disease. (B) Aim to drink at least 8 fluid ounces of water every day. This will help reduce any additional fluid or waste in your system and will also allow you to more easily relieve the symptoms of kidney problems. (C) Insufficient water will contribute to poor kidney function, such as kidney failure and rheumatoid arthritis. Trying to drink water with no filter might cause further kidney damage. (D) [substeps] The best amount of water recommended by experts is 1 gallon a day (2.5 liters) each. Drink bottled water, but you don't need soda, fruit juices, or other non-carbonated beverages; opt for bottled water.
Example Output: A

Example Input: [header] How to show a girl that you care (for guys ) [title] Get to know her. [step] If you're in school together, talk to her in class. If you have mutual friends, talk to her whenever that group gets together. <sep> (A) Most guys just like girls that have something in common. Being more than friends means more opportunities to develop interests. (B) If you don't, ask if there are other friends you can hang out with. Though making contact is difficult, if you're hanging out as a group, you can start if you form a strong bond with her. (C) You don't have to make a big deal about it-just say hello and smile at her. Ask her how she's doing, and strike up a conversation. (D) Talking with her in front of other guys is a great way to showcase your boyfriend's love for her. She'll start to see your declaration as an admission of love and to get to know you better, too.
Example Output:
C