Which statement best describes the difference in responses of effector b cells (plasma cells) and cytotoxic t cells?

B cells secrete antibodies against a virus; cytotoxic T cells kill virus-infected cells.

Explanation:

B cells or white blood cells function in the humoral immune response of the adaptive immune system with the help of secreting antibodies against a virus.

Cytotoxic T cells are known as effector cells which destroy tumor cells, virus infected cells, and tissue grafts which present in the cytosol. Cytotoxic T cells help to keep target specific antigens, and bound together during antigen specific activation. They are also known as the part of the cell meditated immune response.