This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'Most common symptom of bronchial adenoma is? \nSelect and explain. \nA. Wheeze, B. Dyspnea, C. Recurrent hemoptysis, D. Pain', 'role': 'user'}, {'content': "Answer: C \nExplanation: Bronchial adenomas are centrally located slow-growing endobronchial lesions that are generally carcinoid tumors,adenocystic tumors,or mucoepidermoid tumors.Mean age at presentation is 45 years.Patients often give a history of chronic cough,intermittent hemoptysis,or repeated episodes of airway obstruction with atelectasis,or pneumonias with abscess formation. Ref:Harrison's medicine-18th edition,page no:753.", 'role': 'assistant'}]