21) In which situation is a country most likely to choose a flexible exchange rate for its currency?
A.
A country worries that the value of its currency could rise and fall unpredictably.
B.
A country does not want market trends to affect its trade with other countries.
C.
A country wants to make sure that its currency is stable in all economic situations.
D.
A country expects its currency to be more valuable than other countries' currency.