Which of the Following Is TRUE About the Binding of C5b

Which of the following is TRUE about the binding of C5b to the pathogen surface?

A) C5b binds to the pathogen surface the same way C4b and C3b do.
B) C5b requires C6 binding to stabilize it before it dissociates away.
C) C5b, when complexed to C6 and C7, is capable of forming the MAC on any cell membrane, pathogen, or host.
D) C5b both requires C6 binding to stabilize it before it dissociates away and, when complexed to C6 and C7, is capable of forming the MAC on any cell membrane, pathogen, or host.
E) All of the answers are true.