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: Microbiology
Which of the following is not due to complement deficiency? 
Select and explain. 
A. SLE, B. PNH, C. Glomerulonephritis, D. Neisseria infection
B: PNH
Answer: B: PNH 
Explanation: PNH is due to complement regulatory protein deficiency (DAF and CD59).