This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Surgery, Subject name: Surgery
[{'content': "All of the given below statements regarding medullary carcinoma of thyroid are true except: \nSelect and explain. \nA. It arises from 'C' cells, B. Both hematogenous & lymphatic spread is seen ., C. It is dependent on TSH, D. Most case are sporadic", 'role': 'user'}, {'content': 'Answer: C \nExplanation: MEDULLARY CARCINOMA IS NOT DEPENDENT ON TSH', 'role': 'assistant'}]