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: Unknown
[{'content': 'A Patient is on regular medications for co-existing medical problems. Which of the following drugs may be stopped safely with minimal risk of adverse effects before an abdominal surgery - \nSelect and explain. \nA. Statins, B. Bta Blockers, C. ACE inhibitors/ACE Receptor Blockers, D. Steroids', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans-C', 'role': 'assistant'}]