A Fall in the Price of Potatoes,which Are Used in the Production

A fall in the price of potatoes,which are used in the production of french fries,will

A) have no effect on the supply of french fries but cause a movement along the supply curve of french fries.
B) lead to a decrease in the demand for french fries.
C) lead to a decrease in the supply of french fries,causing the supply curve of french fries to shift to the left.
D) have no effect on the supply of french fries.
E) lead to an increase in the supply of french fries,causing the supply curve of french fries to shift to the right.