The correct option is A Per Capita Income
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Per capita income is a measure of the amount of money earned per person in a nation or geographic region. Per capita income can be used to determine the average per-person income for an area and to evaluate the standard of living and quality of life of the population. Per capita income for a nation is calculated by dividing the country's national income by its population.
National income is the value of goods and services produced by a country during a financial year. Thus, it is the net result of all economic activities of any country during a period of one year.
Disposable income, also known as disposable personal income (DPI), is the amount of money that an individual or household has to spend or save after income taxes have been deducted.