Which One of the Following Statements Is Correct

Which one of the following statements is correct?

A) New Zealand uses the same currency as Australia and that is the A$.
B) Exchange rates are adjusted each morning and held constant until the next morning.
C) All of South America uses the peso as their currency.
D) The foreign exchange market is the largest financial market in the world.
E) The four most common currencies traded in the foreign exchange market are the US dollar,franc,euro,and peso.