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: [header] How to reduce calories in coffee drinks [title] Use a low calorie sweetener. [step] Replace teaspoons of sugar added directly into your coffee with a low calorie or no-calorie sweetener, such as splenda. Follow the directions on the package regarding serving size and resist the urge to add extra. <sep> (A) You can also request this substitution when ordering at a coffee shop. [substeps] It is best to choose sweeteners that do not list " aspartame " as one of the ingredients. (B) Sweet drinks containing no sweetener limit should do the same. [substeps] Four servings for a half-ounce glass of coffee will give you seven servings. (C) Sugar-sweetened coffee drinks can cause you to feel full and merry, as they add less calories to your coffee and save you time and energy. It's best to avoid this throughout the day. (D) Typically, this amount of sugar is equivalent to a light sized shake, but it could be less to add to a light, calorie-heavy shake. [title] Drink more juice, if at all.
Example Output: A

Example Input: [header] How to teach your dog to speak [title] Choose your reward. [step] Pick something your dog really loves; the better the reward, the easier it will be to teach your dog. If your dog loves to play, you can try using her favorite toy and playing with her when she barks. <sep> (A) In some cases, you can train your dog to bark through verbal praise. [substeps] Figure out your dog's reward based on cultural context. (B) Point out what your dog likes to play with and put a look on the chart indicating what she wants to learn. [title] Tell your dog to " sit ". (C) Most people, however, will find that treats are the most effective way to teach a dog. The best treats will be ones your dog loves, and which are also easy to carry, easy to break into pieces, and healthy. (D) If her bark is off-putting, encourage her to try other tricks, to avoid barking. [substeps] If you provide a toy or two, this will be enough to train your dog to try the reward.
Example Output: C

Example Input: [header] How to find the best gas prices [title] Take a mental note daily of the gas prices as you drive throughout your local area. [step] Stop and fill up at the place with the lowest gas price you saw. When traveling long distances, pay attention to the gas prices in various areas so you can have an idea of where to fill up on the way back home. <sep> (A) [title] Call and talk to your friends who drive past other fuel stations in the area. [step] Ask them if they notice a price lower than what you know to be the best price, and visit that location. (B) [substeps] You can also try searching your internet to see what prices are listed on the map. Place the map in a place that is easy to find and then walk around using it. (C) [title] Purchase gas at big-box gas stations, supermarkets, or convenience stores. [step] The place that you use to buy gas is likely one of the biggest gas stations in the country. (D) [substeps] Oftentimes, gas prices drop as the road is less trafficked. If you suspect this may be the case, take your time finding the best gas prices online, or in the internet.
Example Output:
A