An exchange rate:

A. is the ratio of the dollar volume of a nation’s exports to the dollar value of its imports.
B. measures the interest rate ratios of any two nations.
C.is the amount which one nation must export to obtain $1 worth of imports.
D.  is the price at which the currencies of any two nations exchange for one another.

ANSWER:

D.  is the price at which the currencies of any two nations exchange for one another.