What Is the Main Argument of the Proponents of a Fixed

What is the main argument of the proponents of a fixed exchange rate system for Canada?

A) There is less uncertainty for importers,exporters and investors,and as a result there would be more trade,and the resulting gains from trade.
B) The fixed exchange rate would act as a shock absorber and reduce the swings in output and employment.
C) Canada's exports would be more attractive to the rest of the world,which would lead to a larger current account surplus.
D) Investment in Canada would be more attractive to the rest of the world,which would lead to a larger capital account surplus.
E) Canada is traditionally an exporting nation,and a fixed exchange rate is more advantageous for exporters.