____________ are responsible for the production of antibody against free pathogens and soluble products from pathogens while ____________ destroy pathogen and virally infected cells and abnormal cells.

A.	Cytotoxic T cells, B cells
B.	Macrophages, T cells
C.	B cells, helper T cells
D.	B cells, cytotoxic T cells Antibody produced by B cells complexes free pathogen and soluble products from pathogens to help remove the threat. Cytotoxic T cells remove infected or damaged cells.