Final answer:
option b.Africa is the continent with the overwhelming majority of HIV-positive cases, particularly due to the high number of cases in Sub-Saharan Africa.
Step-by-step explanation:
The continent home to the overwhelming majority of HIV-positive cases is Africa. This region, especially Sub-Saharan Africa, shoulders a significant burden of the HIV epidemic, accounting for nearly 70 percent of the world's HIV-positive cases. While global efforts have reduced the spread and improved treatment, AIDS remains a devastating reality in Africa. Factors such as the high prevalence among women and children, and certain social and economic conditions, contribute to the severity of the situation in Africa.
The overwhelming majority of HIV-positive cases are found in Sub-Saharan Africa. According to the information provided, Sub-Saharan Africa is home to nearly 70 percent of the world's HIV-positive cases. Women and children are particularly affected, with Africa accounting for 92 percent of all cases of infected pregnant women and 90 percent of all infected children.