(Figure: the Market for Apple Computers in the United States)

(Figure: The Market for Apple Computers in the United States) Use Figure: The Market for Apple Computers in the United States. Assume that PA is the domestic equilibrium price without trade and PW is the world price. Producer surplus without international trade would be area:

A) X + Y + Z.
B) W + X + Y.
C) X + Y.
D) Y.