This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pathology
Mutation in NPHS1 gene causes which disease? 
Select and explain. 
A. Alport syndrome, B. Congenital Finnish type nephrotic syndrome, C. Focal segmental glomerulosclerosis, D. Nail patella syndrome
B: Congenital Finnish type nephrotic syndrome
Answer: B: Congenital Finnish type nephrotic syndrome 
Explanation: Ans. (b) Congenital Finnish type nephrotic syndrome(Ref: Nelson 19 th ed pg 1803)Mutation in NPHS1 gene causes Congenital Finnish type nephrotic syndrome