Which One of the Following Is Rightly Considered a Cost

Multiple Choice

Which one of the following is rightly considered a cost of a single currency?

A) The loss of the freedom for countries joining the single currency to set their own fiscal policies.
B) The loss of the freedom for countries joining the single currency to set their own monetary policies.
C) Higher unemployment.
D) The loss of jobs involved in currency transactions.
E) Higher inflation.