This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'The most common finding associated With fibromyalgia syndrome is- \nSelect and explain. \nA. High ESR, B. Musculoskeletal pain without local tenderness, C. Spontaneous resolution of symptoms, D. Tiredness and insomnia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The defining symptoms of fibromyalgia are chronic widespread pain, fatigue, sleep disturbance, and heightened pain in response to tactile pressure (allodynia). Other symptoms may include tingling of the skin (paresthesias),prolonged muscle spasms without muscle tenderness weaknessin the limbs, nerve pain, muscle twitching, palpitations,and functional bowel disturbances. Ref Davidson 23rd edition pg 629', 'role': 'assistant'}]