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
Phagocytosis enhanced by coating the surface of antigen is called - 
Select and explain. 
A. Opsonisation, B. Chemotaxis, C. Decoding, D. CFT
A: Opsonisation
Answer: A: Opsonisation 
Explanation: 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>