Question

of the following types of cells produce and release antibodies?
helper t-cells
plasma b cells
cytotoxic t-cells
natural killer cells

Explanation:

Helper T - cells assist in immune responses but do not produce antibodies. Cytotoxic T - cells kill infected cells. Natural killer cells target virus - infected and tumor cells. Plasma B cells (also known as plasma cells) are differentiated B - cells that secrete antibodies.

Answer:

Plasma B cells