Which of the following statements about antibodies is correct?

(2) Correct – Antibodies are highly specific to the antigens they bind to, helping the immune system neutralize pathogens.  (1) Antibodies are produced by B-cells, not T-cells. B-cells differentiate into plasma cells, which then secrete antibodies. (3) While B-cells are formed in the bone marrow, antibody production mainly occurs after their differentiation into plasma cells. (4) Antibodies do not function as enzymes in metabolic reactions; they mainly neutralize pathogens and mark them for destruction.