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: Anatomy
Hormone involved in regulation of BP ? 
Select and explain. 
A. Serotonin, B. Angiotensin- II, C. Dopamine, D. Prostaglandin
B: Angiotensin- II
Answer: B: Angiotensin- II 
Explanation: Ans. is 'b' i.e., Angiotensin- II