HIV stands for which of the following?

• A. Human Immunodeficiency Virus
• B. Human Immune Variation
• C. Hepatitis Isolate Virus
• D. Heavy Infectious Virus

Answer: (A)

Understanding what HIV stands for is the key idea here. HIV stands for Human Immunodeficiency Virus, which expressively shows that the virus targets the human immune system, specifically weakening it. The word “Human” marks the host, “Immunodeficiency” describes the diminished immune function that can develop, and “Virus” confirms it’s a viral pathogen. This precise combination is why it’s the best answer—the definition matches the biology of the entity and its impact. The other phrases don’t fit: they either describe something about immunity in a way that isn’t correct (immunity variation), refer to a completely different virus (hepatitis), or use a misleading descriptor that doesn’t reflect the condition (heavy infectious virus). For context, HIV infection lowers CD4 cells and, without treatment, can lead to Acquired Immunodeficiency Syndrome, underscoring how the name captures both the host and the immune impact.