This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pediatrics
Commonest cause of Nephritic syndrome in children is 
Select and explain. 
A. Minimal change disease, B. Membranous GN, C. IgA nephropathy, D. Mesangioproliferative GN
A: Minimal change disease
Answer: A: Minimal change disease 
Explanation: There are many conditions that may cause nephritic syndrome, and it can occur in people of all ages. Common causes are infections, immune system disorders and inflammation of the blood vessels. The main symptoms are passing less urine than normal, leading to a fluid buildup in the body, and having blood in the urine. Reference: GHAI Essential pediatrics, 8th edition