This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'RET gene mutation is associated with which malignancy- \nSelect and explain. \nA. Pheochromocytoma, B. Medullary carcinoma thyroid, C. Lymphoma, D. Renal cell carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Harshmohan textbook of pathology 7th edition. RET gene is a proto oncogene normally code for RET receptor . If point mutation happens it produces Multiple endocrine neoplasia type 2A and type 2B , medullary carcinoma of thyroid. .', 'role': 'assistant'}]