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
Complement synthesis by liver is? 
Select and explain. 
A. C1, B. C5, C. C3, D. C4
C: C3
Answer: C: C3 
Explanation: Complement is a complex of nine different fractions, C1 to C9. They are synthesised at various sites in the body. The complement C3, C6, C9 are synthesised in liver. Reference : Anathanarayan & paniker's 9th edition, pg no:126 <\p>