This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'Non modifiable risk factor for hypeension - \nSelect and explain. \nA. Gender, B. Obesity, C. Salt intake, D. Cultural characteristic acquired over time', 'role': 'user'}, {'content': 'Answer: A \nExplanation: gender is the only non modifiable cause of hypeension.obesity,salt intake,cultural charecteristics are modifiable Ref Davidson 23rd edition pg 455', 'role': 'assistant'}]