Which option correctly expands AIDS?

• A. Acquired immune deficiency syndrome
• B. Autoimmune immune deficiency syndrome
• C. Acquired immunodeficiency syndrome
• D. Acquired immune disorder syndrome

Answer: (C)

AIDS stands for Acquired immunodeficiency syndrome. Here’s why this fits best: “Acquired” means the condition develops after birth, not inherited. “Immunodeficiency” describes a weakened immune system, which is the core issue in AIDS, making the body less able to fight infections. “Syndrome” indicates a group of signs and diseases that occur together because the immune system is compromised. The other phrases use terms that describe different ideas—“autoimmune” refers to the immune system attacking the body itself, which isn’t what AIDS is; and the versions with “immune deficiency” or “disorder” aren’t the standard medical expansion of AIDS.