Which Is the Correct Order for the Steps That Occur

Which is the correct order for the steps that occur during the process of complement fixation for antigen destruction?
1) Complements help in the formation of highly specialized antigen-antibody complexes.
2) Complements become active.
3) Specific cells are targeted.
4) Complexes cause holes to develop in the cell membrane.
5) Sodium and water flow into the cell, causing it to burst open

A) 1, 2, 3, 4, 5
B) 2, 1, 3, 4, 5
C) 3, 4, 1, 5, 2
D) 4, 3, 2, 5, 1