Detailed Instructions: 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".
Problem:[header] How to recognize signs of over exercising [title] Stop exercising if you experience muscle or joint pain. [step] Don't try to work through muscle or joint pain. Pain is a clear sign that you're overdoing it, so listen to your body and take a break. <sep> (A) [substeps] Soreness and tingling in your joints is a sign of overexercising. Throbbing is pain on your body or muscles due to excessive inactivity. (B) [substeps] If you don't feel comfortable getting up from work, or feel you're overdoing it, call your doctor immediately and see if you should exercise. Excessive pain in one hand, poor balance, and difficulty turning or clearing your head are indications of overexercising. (C) Learn about the dangers of decreased activity, such as chronic fatigue. Avoid starting an exercise program that calls for resistance training or strenuous activity after an intense workout to reduce strain. (D) [substeps] Even if you don't experience serious injuries, chronic, nagging muscle soreness is a sign you're exercising too much. [title] Call emergency services if you experience chest pain.
Solution:
D