Which of the Following Statements Regarding Monetary Arrangements Is Correct

Which of the following statements regarding monetary arrangements is correct?

A) A managed-float arrangement occurs when a country has its own currency but commits to exchange it for a specified foreign money unit at a fixed exchange rate and legislates domestic currency restrictions, unless it has the foreign currency reserves to cover requested exchanges.
B) A fixed peg arrangement occurs when a country locks its currency to a specific currency or basket of currencies at a fixed exchange rate, and the exchange rate is allowed to vary only within plus or minus one percent of the target rate.
C) In a freely-floating-exchange-rate regime, governments may occasionally intervene in the market to buy or sell their currency in order to stabilize fluctuations, while in a managed-float arrangement there is significant government intervention to manage the exchange rate by manipulating the currency's supply and demand.
D) Statements b and c are correct.
E) All of the statements are correct.