Suppose That Some Resource X Is Necessary to Produce Some

Suppose that some resource X is necessary to produce some good Y. If the price of X falls

A) there is a movement along the supply curve of good Y.
B) the demand curve for X shifts to the right.
C) the supply curve of good Y shifts to the right.
D) the supply curve of resource X shifts to the left.
E) the supply curve of good Y is unaffected.