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
The protein in glomerular basement membrane responsible for charge dependent filtration is 
Select and explain. 
A. Albumin, B. Collagen type IV, C. Proteoglycan, D. Fibronectin
C: Proteoglycan
Answer: C: Proteoglycan 
Explanation: Ans. is 'c' i.e., Proteoglycan