Answer:
B cell
Explanation:
The B cell works by producing antibodies that work against the antigen causing disease in the body. B cell is activated by a T-helper cell, which is, on the other hand, activated by antigen-presenting- cell of the innate immune system. The antibodies neutralize the antigens and allow for the phagocytic cell, such as macrophages, to ingest and destroy the cell. The antibodies also mark the antigens as a target for T-cytotoxic cells.