Answer:
The correct answer is
Divide each GDP number by its country's population.
Step-by-step explanation:
If we divide each GDP number by its country's population, we will obtain the GDP Per Capita, which is a measure that can determine the standard of living of the countries. In fact, GDP Per Capita is one of the most used measures to measure the standard of living of a country,
In the table, we will add a row with the GDP Per Capita for each country:
Country Population GDP GDP Per Capita
A 5,000 10,000 2
B 10,000 15,000 1,5
C 2,000 8,000 4
D 1,000 5,000 5
Under these figures, the country with the highest standard of living is the country with the highest GDP Per Capita, that is to say, country D.