Analyze the following gross national income (GNI) numbers and the country populations to select the country that has the highest GNI per capita.

A. Country B: GNI of US$US4,500 and population of 200
B. Country C: GNI of US$10,000 and population of 1,000
C. Country D: GNI US$2,000 and population 200
D. Country A: GNI of US$3,900 and population of 80

To find the country with the highest GNI per capita, we need to divide the GNI by the population for each country.

A. Country B: GNI per capita = US$4,500 / 200 = US$22.50
B. Country C: GNI per capita = US$10,000 / 1,000 = US$10.00
C. Country D: GNI per capita = US$2,000 / 200 = US$10.00
D. Country A: GNI per capita = US$3,900 / 80 = US$48.75

Therefore, Country A has the highest GNI per capita at US$48.75.