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': 'In hypertension, end organ involvement depends on? \nSelect and explain. \nA. Diastolic blood pressure, B. Systolic blood pressure, C. Mean capillary blood pressure, D. Decreased elasticity of blood vessel', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]