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: Pediatrics
The most common cause of secondary hypeension in children is - 
Select and explain. 
A. Renal aery stenosis, B. Renal disease, C. Systemic Vasculitis, D. Adrenal Tumours
B: Renal disease
Answer: B: Renal disease 
Explanation: Ans. is 'b' i.e., Renal disease