The diagram below illustrates the circular flow of income for an open economy with a government sector.

Which of the following correctly identifies the macroeconomic flows represented by WWW, XXX, YYY, and ZZZ?
WWW: Consumer Expenditure; XXX: National Income; YYY: Government Spending, Investment, and Exports; ZZZ: Saving, Taxation, and Imports
WWW: National Income; XXX: Consumer Expenditure; YYY: Saving, Taxation, and Imports; ZZZ: Government Spending, Investment, and Exports
WWW: National Income; XXX: Consumer Expenditure; YYY: Government Spending, Investment, and Exports; ZZZ: Saving, Taxation, and Imports
WWW: Consumer Expenditure; XXX: National Income; YYY: Saving, Taxation, and Imports; ZZZ: Government Spending, Investment, and Exports