Correct Option
National Income represents the total money value of all final goods and services produced within the domestic territory of a country during a financial year. This definition excludes intermediate goods to prevent double counting and typically refers to Net National Product (NNP) at factor cost.
Incorrect Options
Option 1 describes a measure akin to Gross National Product (GNP) or Net National Product (NNP) which accounts for production by nationals, irrespective of their location. While NNP at factor cost is a measure of national income, the most direct production-side definition focuses on output within the domestic territory, with adjustments for net factor income from abroad.
Option 2 represents only a part of the expenditure method of calculating national income (C + I + G + (X-M)). It omits government expenditure and net exports, thus not fully capturing the national income.
Option 3, personal income, includes transfer payments (e.g., pensions, unemployment benefits) and excludes certain components of national income like corporate profits and taxes. Therefore, it does not accurately reflect the total value of goods and services produced in the economy.