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
An infant with severe dehydration secondary to diarrhea suddenly presents with proteins and blood in urine. The most probable diagnosis is – 
Select and explain. 
A. Renal vein thrombosis, B. Pyelonephritis, C. Acute glomerulonephritis, D. Lower nephrosis
A: Renal vein thrombosis
Answer: A: Renal vein thrombosis 
Explanation: None