With Regard to Exchange Rates, It Is Correct to Say

Multiple Choice

With regard to exchange rates, it is correct to say that

A) they affect trade balances.
B) they typically vary substantially on a daily basis.
C) they do not vary with market conditions.
D) changes affect only narrow product lines, not all products.
E) as the value of a country's currency falls, foreign companies have less incentive to ship products into that country.