b$.$ Do you agree that a country's current account surplus is a measure of the country's excess saving? Briefly explain.

A$.$ No$,$ it is not possible to use the current account to determine a country's level of saving relative to its level of investment.

B$.$ Yes, if $S=1+Nx,$ and assuming net exports is roughly equal to the current account, then based on this equation, a country with excess saving will have a current account surplus.

C$.$ Uncertain, as we would need to know the prices of goods and services in order to make this determination.

D$.$ No$,$ if $S=I+Nx,$ and assuming net exports is roughly equal to the current account, then all this tells us is whether a country is exporting more than it is importing.