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: Anatomy
[{'content': 'Bronchial adenoma commonly present as \nSelect and explain. \nA. Recurrent haemoptysis, B. Cough, C. Dysponea, D. Chest pain', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bronchial adenoma are hypervascular and can bleed profusely. Other causes chronic cough,oobstruction with atelectasis,lobar collapse, pneumonitis, and abscess formation Ref Harrison 19th edition pg 1676', 'role': 'assistant'}]