Written by Merel Dagher (PEACE Advisor)
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The correct answer is a. Both B cells and T cells are involved in the body’s immune, or lymphatic, system. B cells, however, are matured in the bone marrow and produce antibodies that recognize various antigens present in the body. T cells, on the other hand, are matured in the thymus and work to help white blood cells, kill foreign cells or cells that have been infected with a foreign virus, or persist long-term after an infection has been dealt with.