This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypertension, Subject name: Medicine
[{'content': 'Management of essential hypertension is? \nSelect and explain. \nA. No need to treat, B. Diet modification alone, C. Diet modification and drugs, D. Invasive surgery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ANSWER: (C) Diet modification and drugsREF: Harrison 17th ed chapter 241"The mainstay of treatment of essential hypertension is lifestyle, diet modification and drugs"', 'role': 'assistant'}]