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 process of coating a paicle, such as a microbe, to target it for phagocytosis is called: 
Select and explain. 
A. Opsonization, B. Priming, C. Activation, D. None of the above
A: Opsonization
Answer: A: Opsonization 
Explanation: Leukocytes express receptors for proteins that coat microbes. The process of coating a paicle, such as a microbe, to target it for ingestion (phagocytosis) is called opsonisation. Substances that do this are opsonins. Ref: Robbins 8th edition Chapter 2.