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': "Fogay's catheter is used for - \nSelect and explain. \nA. Drainage of urinary bladder, B. Parenteral hyperalimentation, C. Removal of embolus from blood vessels, D. Ureteric catheterisation", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Removal of embolus from blood vessels", 'role': 'assistant'}]