This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Complement system, Subject name: Pathology
C3 complement is cleared by? 
Select and explain. 
A. CD 59, B. CD 55, C. Factor D, D. Factor E
B: CD 55
Answer: B: CD 55 
Explanation: 1.) CD59 - It is also given the name of MIRL (Membrane Inhibitor of Reactive Lysis). 2.) CD55 - It is given the name of DAF (Decay Accelerating Factor) . It is responsible for breakdown of C3.