Answer:
Option B
Step-by-step explanation:
The function of the CD4 T cells is that they play an important role in the immune system, particularly in the adaptive immune system. They function by stimulating other important immune cells for example macrophages etc to fight infections caused by microorganisms including bacteria and viruses.
Thus, the destruction of these particular white blood cells will lead the cell's inability to activate and recruit other important immune cells to fight against this infections.