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
Complement complex that attacks cell membrane is 
Select and explain. 
A. C12345, B. C23456, C. C34567, D. C56789
D: C56789
Answer: D: C56789 
Explanation: The complement complex attacking the cell membrane is membrane attack complex having a composition of C56789
Action of this complex leads to entry of fluid and ions inside the cells leading to cell lysis.
	Complement system has three main function
	1. Inflammation
	2. Opsonization
	3. Cell lysis