A Primary Result of the Smithsonian Agreement Was

A primary result of the Smithsonian Agreement was:

A) the establishment of the European Monetary System (EMS) .
B) establishing that exchange rates of most major countries were to be allowed to fluctuate 2.25% above or below their initially set values.
C) establishing specific rules for when tariffs and quotas could be imposed by governments.
D) establishing that exchange rates of most major currencies were to be allowed to fluctuate freely without boundaries (although the central banks did have the right to intervene when necessary) .