

MCQOPTIONS
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1. |
Immunological memory is due to |
A. | short lived macrophage that can recognize specific pathogens |
B. | long lived B cells that secrete a specific antibody |
C. | long lived B cells that secrete a specific antigen |
D. | short lived helper T cells that signal macrophage to divide |
Answer» C. long lived B cells that secrete a specific antigen | |