A. 1983
B. 1990
C. 1985
D. 1988
🧠 Explanation:
HIV, the virus causing AIDS, was identified in 1983 by scientists, including Luc Montagnier and Robert Gallo. This discovery followed outbreaks of unusual infections in the early 1980s, leading to intense research. Identifying HIV was a breakthrough in understanding AIDS, enabling diagnostic tests and treatment development. The virus attacks the immune system, making it a global health challenge. This milestone is critical in medical history, driving advancements in virology, public health, and antiretroviral therapies, which have since improved life expectancy for millions affected by HIV worldwide.
