The correct answer is: C. NNP at factor cost
GNP at market prices is the total market value of all final goods and services produced by a country’s residents in a given year, plus net income from abroad. Indirect taxes are taxes that are levied on goods and services, such as sales tax and value-added tax. Subsidies are payments made by the government to producers of goods and services, such as agricultural subsidies.
NNP at factor cost is GNP at market prices minus indirect taxes plus subsidies. It is a measure of the total income earned by the factors of production in a country in a given year. It is also known as national income at factor cost.
GDP at factor cost is the total market value of all final goods and services produced within a country’s borders in a given year, plus net income from abroad. It is a measure of the total economic activity within a country.
NDP at factor cost is GDP at factor cost minus depreciation. Depreciation is the decrease in the value of capital goods over time due to wear and tear. It is a measure of the cost of using capital goods in production.
In conclusion, GNP at market prices-Indirect taxes + subsidies is referred to as NNP at factor cost.