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 ask survey questions [title] Understand your objective. [step] Make sure you know why you are asking questions in the survey. Having a firm grasp of this will help you make better questions. <sep> (A) Without knowing your objective, your questions may seem aimless. [substeps] Try to answer the questions: who, what, where, when and why for yourself. (B) [substeps] However, you may not have a completely clear and accurate understanding of your evaluation topic. You may need the fact-figure accuracy to have a clear and reliable assessment. (C) You can additionally foster a good relationship between you and the question that came up. [substeps] Once you have developed a rapport with the question, you should begin addressing it. (D) [substeps] Determine whether the survey may be a waste of time. If the survey results in a huge number of questions, it will be better for you to leave some questions blank or to completely miss the question's significance.
Example Output: A

Example Input: [header] How to make healthy mashed potatoes [title] Wash and cut the potatoes. [step] Wash 1 1/4 pounds (567 g) of your potatoes. You can also use a mix of potatoes and root vegetables for a variety of nutrients. <sep> (A) You can discard the peels, pits, and skins to make only healthy mashed potatoes. [substeps] The mashed potatoes will have a mildly sour texture after this step. (B) Leave the skin on the vegetables and cut them into 1-inch (2.5 cm) pieces. [substeps] Ensure that the pieces are the same size, so they cook evenly. (C) Wash the potatoes out of a colander and rinse them under clean running water. Then rinse each potato under cool, running water for about 5 seconds to remove dirt. (D) Wash the potatoes under hot tap water so they're soft and ready to eat. [substeps] Fresh or frozen mashed potatoes will last 7 to 10 months.
Example Output: B

Example Input: [header] How to become strong for basketball [title] Become strong emotionally. [step] By doing this you will be able to have a good attitude and do your best even if you are losing! Make up your mind to stay strong, whether you are winning or losing. [title] Get physically stronger try to do 100 push-ups and sit-ups every morning and night. <sep> (A) [step] Try to get on your same position with your chest up and knees over your hips. This will help you to strengthen your abs, maintaining your strength. (B) [step] This will help you out a lot in enduring the hard task at hand. You may want to start off slowly and do 25, then 50, then 75, and go from there. (C) [step] Lean over the ball; stand with your feet about shoulder width apart. [title] Be active and will make you muscles stronger in the future, stress will reduce. (D) [step] Doing this you will stay healthy and your body will get stronger. [title] Get some pieces of equipment like a headband and shin guard.
Example Output:
B