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

Which of the following correctly identifies the economic concepts represented by the arrows WWW, XXX, and ZZZ?
WWW: Savings (Leakage); XXX: Government Spending (Injection); ZZZ: Imports (Leakage)
WWW: Investment (Injection); XXX: Taxes (Leakage); ZZZ: Exports (Injection)
WWW: Savings (Leakage); XXX: Government Spending (Injection); ZZZ: Exports (Injection)
WWW: Investment (Injection); XXX: Taxes (Leakage); ZZZ: Imports (Leakage)