An Exchange-Rate Shock Refers To

An exchange-rate shock refers to:

A) a large appreciation of the currency that occurs over a long period of time.
B) a large appreciation of the currency that occurs over a short period of time.
C) a large depreciation of the currency that occurs over a long period of time.
D) a large depreciation of the currency that occurs over a short period of time.
E) a long period of exchange rate volatility.