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Opsonins are:

 # Opsonins are:
A. C3a
B. IgM
C. Carbohydrate binding proteins
D. Selectins



The correct answer is C. Carbohydrate binding proteins.

Opsonins 
• Chemicals causing opsonisation 
• They are specific carbohydrate binding proteins 

Examples of opsonins 
• C3b 
• Fc fragment of antibody or IgG 
• Some serum proteins (like fibrinogen, mannose binding lectin and C reactive protein) 

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