Which of These Are Key Factors in Explaining the Discrepancy

Multiple Choice

Which of these are key factors in explaining the discrepancy between death rates in the world versus sub-Saharn Africa in the 21ˢᵗ century? (Select all that apply)

A) Global unavailability of effective antibiotics
B) Poverty of nations in sub-Saharan Africa
C) Political instability
D) Lack of sanitation
E) Global unavailability of vaccines for endemic diseases