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".
Input: [header] How to treat morgellon's disease [title] Identify your symptoms. [step] Morgellon's disease is a skin disorder in which people have itchy sensations on their skin. This may cause them to scratch until they have open sores. <sep> (A) Symptoms include : [substeps] Severe itching caused by sores or a rash the feeling that insects are crawling under your skin the feeling that you are being bitten or stung by insects fibers or strings in or on your skin. The fibers may be in the sores. (B) You can identify the name of this symptom by noticing the placement of pus in the sores. [substeps] Be aware that topical treatment for morgellon is most effective when treated with antibiotics. (C) Sores on the skin can range anywhere. Examine your skin for the following symptoms : [substeps] A dry rash on your skin itching numbness or tingling tenderness or/or burning [title] Consider treatment for morgellon's disease. (D) You are likely to feel the itching between your toes. If you feel the itching, don't attempt to scratch them.
Output:
A