Correct Option: D

NNP at factor cost is equivalent to national income. Net National Product at factor cost is the aggregate made to the factors of production. NNP at FC is the total incomes earned by all the factors of production in the form of wages, profits, rent, interest etc. plus net factor income from abroad. Similarly National income is the sum total of wages, rent, interest, and profit earned by the factors of production of a country in a year. Thus it is the aggregate values of goods and services rendered during a given period counted without duplication.