21. Which of the following statements is correct?
(A) GDP can be measured either as the total spending on domestically produced goods
and services, or the total value added in domestic production, or the sum of all incomes
received from domestic production.
(B) Both exports and imports are included in the measurement of GDP.
(C) Government production is not included in the GDP.
(D) Domestically consumed goods are included in GDP with more weight than exports.