This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'True about follicular carcinoma of thyroid \nSelect and explain. \nA. More common in endemic area, B. Non-encapsulated, C. Mean age 40 years, D. Histopathology differentiates adenoam from carcinoma easily', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. More common in endemic areaAn increased incidence of cancer (usually follicular) has been repoed from endemic areas. Dominant or rapidly growing nodules in longstanding goiters should always be subjected to aspiration cytology.', 'role': 'assistant'}]