Comparative advantage is the ability of a country to produce a good at a ________ opportunity cost relative to other countries

If prices of goods and services are inflexible, then:

A. A negative demand shock would lead to increased real GDP in the short run B. A positive demand shock would lead to increased real GDP in the short run C. A negative demand shock would have no short-run effect on real GDP D. There would be no short-run demand shocks

If interest rates rise in the United States, what effect does this have on the value of the U.S. dollar?

What will be an ideal response?