BRAINELIST!!! I NEED ASAP

HIV attacks the bosdys helper T cells - the cells that activate bpth cyotoxic T cells and B cells. These cells are important part of the immune system. The most common danger related to the destruction of these cells is-

A) the inability to maintain correct O2 levels
B) an increase in the risk of high blood pressure
C) a decrease in the flow of blood to vital organs
D) the body loses its ability to fight infections