This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': 'Compared to follicular Ca, papillary Ca of thyroid associared with \nSelect and explain. \nA. More male preponderance, B. Radiation exposure, C. Iodine deficiency, D. Increased moality', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Papillary carcinoma thyroid is more seen in radiation exposure, and also has high lymph node involvement. Follicular thyroid carcinoma is associated with iodine deficiency. It has hematogenous spread and comparitively a less otable outcome Both are common in females.', 'role': 'assistant'}]