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: Medicine
[{'content': 'Most common cause of chronic kidney disease (CKD) in\nadults? \nSelect and explain. \nA. HTN, B. DM, C. Heart disease, D. cystic tubule interstitial disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]