Which countries have the highest standard of living as measured by average incomes and per capita gross domestic product?

Group of answer choices

a- Countries with economies in which the government has a majority control over economic variables, such as prices, wages and interest rates.

b- Countries with the freest markets and relatively limited government control over economic variables.

c- Countries with economies that have the least dependency on other countries. International trade is limited.

d- Countries with the most government spending and highest tax rates.