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': "Enlargement of thyroid gland with tenderness is most commonly seen in: March 2013 \nSelect and explain. \nA. DeQuervains thyroiditis, B. Hashimoto's thyroiditis, C. Grave's disease, D. Reidel's thyroiditis", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. B i.e. Hashimoto's thyroiditis", 'role': 'assistant'}]