Because of Differences in Culture and Language, It Is Not

Because of differences in culture and language, it is not surprising that:

A) Eurozone nations are opposed in theory to the currency union but accept it in practice.
B) Eurozone nations tend to be more homogeneous than states in the United States.
C) demand shocks tend to be symmetric, whereas supply shocks are asymmetric.
D) the year-to-year flow of people between states in the United States is larger than the same flow between member nations in the Eurozone.