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: Physiology
[{'content': 'Positively charged particle can be easily filtered than negatively charged particle because \nSelect and explain. \nA. Positively charged particles are of small size, B. Presence of positive charged particles on filtering membrane attracts positively charged particle, C. Presence of negatively charged sialoproteins on filtering membrane repels negatively charged particles and allows positively charged particles., D. None of the above', 'role': 'user'}, {'content': "Answer: C \nExplanation: Epithetial cells of Bowman's capsule deposits negatively charged sialoproteins in basement membrane.\nIt repels negatively charged particles and attracts positively\xa0charged particles.", 'role': 'assistant'}]