Answer:
The options are
A) thyroid cells
B) macrophage
C) memory cell
D) plasma cell
C) memory cell is the ANSWER
Explanation:
B lymphocytes is one of the important cells of the immune system. It's the building block for the memory cells which acts as a means of recognizing pathogens that have previously infected the body system in order to boost the production of antibodies against such pathogen for faster immune response in future infections