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: Pathology
[{'content': 'The protein in the GBM responsible for charge dependent filtration is \nSelect and explain. \nA. Albumin, B. Collagen type IV, C. Fibronectin, D. Proteoglycan', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Glomerular basement membrane contains: a. Collagen type IV b. Laminin c. Polyanionic proteoglycans (responsible of charge-dependent filtration) d. Entactin e. Fibronectin f. Sialoglycoprotein coating on endothelial and visceral epithelial cells. Ref: ROBBINS BASIC PATHOLOGY 10th ed Pg no: 551', 'role': 'assistant'}]