Both Europe and the United States Have Seen Interregional Shifts

Both Europe and the United States have seen interregional shifts of manufacturing, but one difference is

A) in the United States, government policies have encouraged relocation.
B) in Europe, government policies have encouraged relocation.
C) the concentration of industries in Europe and diffusion in the United States.
D) the concentration of industries in the United States and diffusion in Europe.
E) movement to the west in Europe and to the east in the United States.