Please answer the following question by reasoning step-by-step.
What does hiv damage?\nOptions:\n- (A) Leptospirosis\n- (B) immunities\n- (C) Our immune system\n- (D) immunizations\n- (E) Veins and arteries.\n- (F) respiratory system\n- (G) Plant reproduction\n- (H) the body's largest organ

(C)
HIV infects and destroys helper T cells.

Helper T cells are the critical link in our immune system.

HIV damages our immune system.

.

Therefore, the answer is (C)