The characteristics in the table that best supports the claim that country A is a more developed country and that country B is a less developed country is Infant mortality rate
It is often measured by the death under one year of age divided by the number of live births present for the same geographic area usually a a specific year and thereafter it is multiplied by 1,000.
The country that has the highest infant mortality rate as at 2021 is Afghanistan
Developed nations are known as as countries that are more industrialized in nature and tend to be wealthy ( higher per capita income levels).
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