Answer:
D. decreasing and life expectancy is increasing.
Explanation:
In Botswana today, the rates of HIV/AIDS infection are decreasing and life expectancy is increasing.
HIV is an abbreviation for human immunodeficiency virus and it can be defined as a venereal disease that gradually destabilizes and destroys the immune system of an infected patient.
This ultimately implies that, HIV makes it practically impossible for antigens to effectively and efficiently combat (fight) pathogens in a person's body.
Based on the information provided by World Health Organization (WHO), the rates of HIV/AIDS infection in Botswana today are decreasing and life expectancy is increasing.
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