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: Pharmacology
[{'content': 'Which of the following Antihypertensive is preferred in cases of comorbid Diabetes Mellitus \nSelect and explain. \nA. Nitrates, B. ACE inhibitors, C. β - blockers, D. Calcium channel blockers', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ACE inhibitors are the drug of choice for Hypertension with Diabetes Mellitus.', 'role': 'assistant'}]