If net capital flow were zero for a country, then exports would not equal imports

In the open-economy macroeconomic model, if the supply of loanable funds shifts right, then

a. net capital outflow increases so the demand for dollars in the market for foreign-currency exchange shifts right. b. net capital outflow increases so the supply of dollars in the market for foreign-currency exchange shifts right. c. net capital outflow decreases so the demand for dollars in the market for foreign-currency exchange shifts left. d. net capital outflow decreases so the supply of dollars in the market for foreign-currency exchange shifts right.

Scarcity is a problem:

A. measured by the amount of goods available. B. of the poor, but not the rich. C. because human wants are unlimited while resources are limited. D. only in industrialized economies.