(Last Word) According to Yale University's Environmental Performance Index (EPI)

(Last Word) According to Yale University's Environmental Performance Index (EPI) ,

A) countries with lower GDP per person tend to have healthier environments.
B) countries with higher GDP per person tend to have healthier environments.
C) there is no correlation between GDP per person and environmental quality.
D) growth in GDP per person initially improves environmental quality and then gradually reduces it.