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 stretch to improve your flexibility [title] Warm up your muscles. [step] Perform 40 jumping jacks , 25 squats, run on the spot for 5 minutes, and ten press-ups or ten girl press-ups if you are not strong enough. [title] Start with simple stretches to get used to the concept and feeling of stretching. <sep> (A) [step] You can stretch on a ball or in the sky. Avoid attempting to do anything difficult or hard and figure out what you're doing properly. (B) [step] Does it feel to stretch? That is great. Start slow and do thirty chest presses before you reach bench pressing. (C) [step] Stretching is the single best way to exercise comfortably and to elevate your blood circulation. [title] Work your muscles with the backbend workouts. (D) [step] Stand up and stretch your legs into a wide straddle. Reach down until your palms rest on the ground, keeping your legs straight.

Output: D

Input: Consider Input: [header] How to make modeling clay in a slow cooker [title] Preheat the slow cooker. [step] To ready your slow cooker for cooking the clay, it's important to preheat it. Plug it in, and set the temperature to low. <sep> (A) That will allow the slow cooker to heat up slowly. [substeps] While children can help with the measuring and mixing of the ingredients, an adult should handle preparing and heating the slow cooker. (B) Cover the slow cooker and leave it somewhere out of the way where it won't be disturbed as it cooks. Doing this early will make your clay easy to mix and smooth. (C) Avoid getting hot coals inside the slow cooker. [substeps] Make sure there are no ashes or scraps of food stuck onto the bottom of the slow cooker before cooking the clay. (D) Allow the slow cooker to heat up to about 325 degrees fahrenheit (260 degrees celsius) for 1 hour. [substeps] Do not allow the temperature to go above the cool bar when you shut the electric slow cooker.

Output: A

Input: Consider Input: [header] How to dispose of tampons [title] Never flush tampons down the toilet. [step] Once you have removed your tampon, you should dispose of it properly. This means never letting the tampon simply fall into the toilet and then flushing the tampon down the drain. <sep> (A) This will clog the drain of the toilet and could damage the plumbing. [title] Wrap the tampon in a piece of toilet paper. (B) It also means never holding it there longer than 15 seconds. [title] Wash and sanitize your hands. (C) Follow the safety and sanitary practices of your school and your workplace for safe disposal. [substeps] Be sure that nobody has witnessed you flushing any tampons down the toilet. (D) Wait a few days after you remove the tampon to flush any other tampons down the toilet properly. [substeps] Even if you have replaced your tampon, do not flush.
Output: A