Which of the following best denotes classical complement pathway activation in immuno inflammatory condition:: (A) C2, C4 and C3 decreased, (B) C2 and C4 normal, C3 is decreased, (C) C3 normal and C2, C4 decreased, (D) C2, C4, C3 all are elevated
Answer is A. Answer is A (C2, C4 and C3 decreased): The final outcome of both the pathways is formation of membrane attack complex , which causes lysis of cells.