The Primary Difference Between a Change in Supply and a Change

Multiple Choice

The primary difference between a change in supply and a change in the quantity supplied is that:

A) a change in quantity supplied is a movement along the supply curve,while a change in supply is a shift in the supply curve.
B) both a change in quantity supplied and a change in supply are movements along the supply curve,only in different directions.
C) a change in supply is related to the supply curve,while a change in quantity supplied is related to shifts in the demand curve that shift the supply curve.
D) a change in supply is a movement along the supply curve,while a change in quantity supplied is a shift in the supply curve.