A Shift in the Demand Curve to the Left, All

A shift in the demand curve to the left, all other things unchanged:

A) will cause the supply curve to shift to the left, too.
B) will cause a movement upward along the supply curve and a higher equilibrium price.
C) will cause a movement downward along the supply curve and a lower equilibrium quantity.
D) will result in a lower equilibrium price and greater equilibrium quantity.