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: Pathology
[{'content': 'The Finnish type of congenital nephritic syndrome occurs due to gene mutations affecting the following protein: \nSelect and explain. \nA. Podocin, B. Alpha-actinin, C. Nephrin, D. CD2 activated protein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Congenital nephrotic syndrome of the Finnish type (CNF) is caused by mutations in NPHS1, encoding the slit-diaphragm and podocin-associated protein nephrin. Ref: Robbins Pathologic Basis of Disease, 7th Edition, Pages 983-4; Genetic Diseases of The Kidney By Richard P. Lifton, Stefan Somlo, Gerhard H. Giebisch, 2008, Page 115', 'role': 'assistant'}]