Teacher: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".
Teacher: Now, understand the problem? Solve this instance: [header] How to get skinny fast [title] Set stringent goals. [step] Getting skinny quickly is not something easily achievable. Setting specific and timely goals may help you reach your desired weight. <sep> (A) [substeps] Consider how will you achieve your goal. Be as specific as possible to know what is exactly the right course for you. (B) [substeps] Try to have a goal that can be met in one piece. Maybe you want to lose one pound in a year and a week, or perhaps you want to lose two pounds in a year. (C) Get a discussion with your friends about your goals and be specific. [substeps] Plan to stay healthy in the five days following your pmi. (D) [substeps] Achieving goals is often the most difficult part of your weight loss journey. To help yourself lose weight quickly, it is best to exercise for 30 minutes every day or longer.
Student:
A