The monetary approach to interest rates assumes that the prices of goods are ________, which implies that a country's currency will ________, when nominal interest rates ________ because of ________ expected future inflation.

a.perfectly flexible; depreciate; decrease; higher

b.perfectly flexible; appreciate; increase; lower

c.perfectly flexible; appreciate; decrease; lower

d.immutable; appreciate; decrease; higher

e.immutable; depreciate; decrease; higher