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: Anaesthesia
[{'content': 'Calcium channel blockers in anaesthesia, True is – \nSelect and explain. \nA. Needs to be decreased as they augment hypotension & muscle relaxation, B. Withheld because they lower LES pressure, C. Should be given in normal doses as they prevent MI & angina, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: All antianginal drugs (including calcium channel blockers) should be continued as such and morning dose should be taken with a sip of water.', 'role': 'assistant'}]