Why might there be such a large difference in the per capita GDP of these specific countries of Southwest Asia (the Middle East) and North Africa?

A. foreign invasions
B. environmental disasters
C. limited waterways
D. access to oil fields

D. access to oil fields

The countries in Southwest Asia and North Africa that have a high per capita GDP tend to have significant oil reserves, which can greatly boost their economies through exports and revenue generation. Countries without access to oil fields may struggle to achieve the same level of economic prosperity.