Questions 11 ～13 are based on the following talk about the euro. You now have 15 seconds to read Questions 11 ～13.
Why did the worth of euro drop

A．It dropped due to the weakness of the eurozone economies and the inexperience of the European Central Bank in dealing with the international markets.
B．People in most European countries refused to use euro instead of their own currency.
C．Counterfeiters made a lot of fake notes since people were not familiar with the new currency.
D．Some countries are not ready for the euro. They stopped using euro in daily purchasing.