This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Phagocytosis enhanced by coating the surface of antigen is called - \nSelect and explain. \nA. Opsonisation, B. Chemotaxis, C. Decoding, D. CFT', 'role': 'user'}, {'content': "Answer: A \nExplanation: The opsonin is the heat liable substance present in fresh normal sera, which facilitated phagocytosis. This process is called opsonization Reference:nathanarayan & paniker's 9th edition, pg no: 112 <\\p>", 'role': 'assistant'}]