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 relax and go to sleep [title] Exercise during the day. [step] This will help you to be physically tired at night. Your body will also release endorphins which will calm you emotionally. <sep> (A) The endorphins can also help maintain your mood because they help decrease your emotional stress and improve your energy level. [substeps] There are numerous foods and types of exercise to help you to feel relaxed throughout the day. (B) [substeps] Exercise can also wake your body up, so it is best to do it earlier in the day. If you can chose between going to the gym in the morning and in the evening, try going in the morning. (C) Exercise gives you the endorphins, which are giving your body the energy to work and go to sleep. [substeps] Thirty minutes of exercise a day is probably best, but you can even do more if you want. (D) Try walking, cycling, swimming, boxing, jogging, or dancing. Any activity that relaxes you will help you feel rested at night.
Student:
B