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: Medicine
An 8-year-old child suffering from recurrent attacks of polyurea since childhood presents to the paediatrics OPD. On examination, the child is short statured vitals and BP are normal. Serum Creatinine - 6 mg%,HCO3 - 16 meq, Na - 134, K+ 4.2 . On USG, bilateral small kidneys are seen. Diagnosis is - 
Select and explain. 
A. Reflux Nephropathy, B. Juvenile Nephronophthisis, C. Polycystic kidney disease, D. Medullary cystic kidney disease
B: Juvenile Nephronophthisis
Answer: B: Juvenile Nephronophthisis 
Explanation: None