According to the theory of optimum currency areas, a currency area has the least chance for success when: a. a single monetary policy affects all member countries in the same manner b. countries of th

According to the theory of optimum currency areas, a currency area has the least chance for success when:

a. a single monetary policy affects all member countries in the same manner

b. countries of the currency area have differing business cycles

c. prices and wages can be adjusted in response to economic disturbances

d. workers have a high degree of mobility across borders of the currency area