A和B可以解释一下吗，答案没太懂

问题如下：

If the domestic country desires to reduce a current account surplus, the most likely outcome is that it will:

选项：

A.lend to foreign countries. B.encourage foreign direct investment. C.have a lower gross domestic product (GDP) than if it were a closed economy.

解释：

Solution

A is correct. Because there is a current account surplus, the domestic country will need to lend to foreign countries—most likely, those with current account deficits.

B is incorrect. Foreign direct investment into the domestic country will increase the current account surplus.

C is incorrect. A current account surplus means GDP [GDP = Current account surplus + Private consumption (C) + Investment (I) + Government purchases of goods and services (G)] is higher than the closed economy version of GDP (i.e., GDP-closed = C + I + G). The difference between the two versions of GDP is positive and equals the current account surplus.