As the World Moves Toward Freer Trade, the Composition of Production

As the world moves toward freer trade, the composition of production shifts so that more environmentally "dirty" products are produced in _____ and more environmentally "clean" products are produced in _____.

A) industrialized countries; developing countries
B) developing countries; industrialized countries
C) both industrialized and developing countries; only industrialized countries
D) developing countries; neither industrialized nor developing countries