In 2008,the Inflation Rate in Zimbabwe Rose to Almost 15

In 2008,the inflation rate in Zimbabwe rose to almost 15 billion percent,and eventually foreigners and local residents refused to accept the Zimbabwean dollar for goods and services.In early 2009,the new ZImbabwean government decided to

A) stop printing currency and officially convert to a barter economy.
B) abandon its own currency and make the U.S. dollar the country's official currency.
C) ban all foreign currency to force residents to use the local currency.
D) convert from a system of fiat money to commodity money.