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: Pharmacology
Common side effect of angiotensin receptor blocker? 
Select and explain. 
A. Postural hypotension, B. Uicaria, C. Bronchospasm, D. Hypokalemia
A: Postural hypotension
Answer: A: Postural hypotension 
Explanation: Ans. is 'a' i.e., Postural hypotension