The client diagnosed with essential hypertension asks the nurse, 'Why do I have high blood pressure?' Which response by the nurse would be most appropriate?

B More than likely you have had a diet high in salt, fat, and cholesterol.' C There is no specific cause for hypertension, but there are many known risk factors.' D You are concerned that you have high blood pressure. Let's sit down and talk.' A You probably have some type of kidney disease that causes the high BP.'