What Is the Difference Between a Shift in the Demand

Multiple Choice

What is the difference between a shift in the demand curve and a movement along the demand curve?

A) A shift is a reaction to a movement along the demand curve.
B) A shift implies a change in the whole demand curve; a movement does not.
C) A shift conveys a change in the opportunity cost; a movement does not.
D) A shift creates a new equilibrium price; a movement creates a new equilibrium quantity.