This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid and Parathyroid, 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: Ans. is 'b' i.e., Medullary carcinoma thyroid o RET p ratoon cumene is a growth factor receptor (receptor tyrosine kinase)o The RET protein Is a receptor for the glial cell lined derived neurotrophic factor and structurally related proteins that promote cell survival during neural development.", 'role': 'assistant'}]