Answer:
The correct answer is B-cells
Step-by-step explanation:
There are two types of lymphocytes B- lymphocytes and T- lymphocytes. B lymphocytes or B cells when interacts with the antigen with its B cell receptor it differentiates into two cell memory B cells and plasma B cells.
Plasma B cell is responsible for secreting various antibodies and these antibodies bind to the epitope region of antigen and helps in opsonization and killing of antigen. Memory B cell helps in generating quick immune response when that antigen comes again in the body. Therefore the correct answer is B cells.