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