This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Heart, Circulation, and Blood, Subject name: Physiology
[{'content': 'Decreases contributory factor in chronic hypertension is associated with \nSelect and explain. \nA. Aldosterone, B. Angiotensin II, C. Nitric oxide, D. Reduced sympathetic nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: [Cl (Nitric oxide) (598- Ganong 22th) (560- 562- K.S.4th) (336-A.K. Jain 3rd) (564- Ganong 23rd)* Excess of secretion of aldosterone from adrenal cortex leads to hypertension* Tumours of the Juxtaglomerular cells leading to formation of excess of angiotension II- leads to Renal hypertension* Nitric oxide (No) is an endothelium derived relaxing factor. It is synthesized from arginine. It is a vasodilator deficiency of this leads to hypertension* Nitric oxide is necessary for maintenance of normal blood pressure (NO- deficiency is associated with hypertension)', 'role': 'assistant'}]