Answer:
(B). B cells and T cells.
Step-by-step explanation:
The specific immune system or adaptive immune system cam be defined as part of immune system, which comprises highly specific and specialized cells to eliminate and prevent the growth of pathogens.
Cells that show specific immune responses are T cells (T lymphocytes) and B cells (B lymphocytes). B cells form antibodies against pathogens or their components and neutralize them, while T cells produce various cytokines to activate other immune cells or direct killing of pathogens.
Thus, the correct answer is option (B).