Which Sequence of Numbers Places the Steps of Antibody-Mediated Immunity

Which sequence of numbers places the steps of antibody-mediated immunity in the proper order?
1) Plasma cells secrete antibodies.
2) Helper T cells interact with B cells displaying the same antigen-MHC complex.
3) Contact with antigen.
4) Clones of B cells produced.
5) Fragmentation of antigen.

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