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".

[header] How to treat an eating disorder [title] Contact a mental health professional. [step] At the heart of eating disorders is often extreme pain, problems with self-worth, shame, and difficulty expressing emotions. The best person to tell is a counselor who should have the training and resources to help you get started in recovery. <sep> (A) [title] Seek medical attention immediately if : [step] Your symptoms worsen or get worse and you see severe signs of improvement. This should usually happen 30-35 days after treatment. (B) [substeps] Alternatively, you may want to visit the mental health professional's office for a consultation. They may have expertise with eating disorders and may ask several questions. (C) [substeps] All who treat a eating disorder should see a mental health professional. A good mental health professional can help you create a plan for recovery and support you through it. (D) Eating disorders are life-threatening and, while teachers, friends, and loved ones all care for you and are well-meaning, it is essential you speak to a professional who can get you help and that you can trust. [substeps] If you are in junior high or high school, talk to the school counselor.
D