Where is the proportion of people with AIDS the lowest?

The correct choice indicating that East Asia has the lowest proportion of people with AIDS is grounded in the epidemiological data on HIV/AIDS prevalence across different regions. East Asia, comprising countries such as China, Japan, and South Korea, has historically experienced lower infection rates due to various factors, including effective public health measures, increased access to healthcare, and sociocultural attitudes towards sexual health and education.

In contrast, regions like Sub-Saharan Africa are heavily impacted by the epidemic, with some countries facing extremely high prevalence rates due to a combination of factors such as stigma, limited healthcare access, and socio-economic challenges. Latin America and South and Southeast Asia also have notable numbers of individuals living with HIV/AIDS but do not match the severe prevalence statistics seen in Sub-Saharan Africa.

Therefore, East Asia stands out as a region where awareness, prevention strategies, and healthcare systems have contributed to a lower proportion of people affected by AIDS compared to other areas.