-Refer to the Graph Above to Answer This Question

-Refer to the graph above to answer this question.Given a change in demand from D1 to D2,how could Switzerland maintain the value of francs in Canadian terms?

A) By shifting the S curve to the right by imposing tariffs on Canadian imports.
B) By instituting exchange controls to ration Eg francs to Canadian importers who want Ec francs.
C) By using international monetary reserves to cover the Ec shortage of francs.
D) By using international monetary reserves to cover the cg shortage of francs.
E) By imposing exchange controls on Swiss citizens.