Besides regional economic integration, countries may form _____ to control the production, pricing and sale of particular goods so as to seek higher and more stable prices for the relevant goods.

Besides regional economic integration, countries may form _____ to control the production, pricing and sale of particular goods so as to seek higher and more stable prices for the relevant goods.

A.the European Community

B.the Customs Union

C.the common market

D.a commodity cartel

正确答案是D