Which of the following can be inferred from the passage about the European Community prior

Which of the following can be inferred from the passage about the European Community prior to the adoption of the Europe 1992 program？

A．There were restrictions on commerce between the member nations.

B．The economic policies of the member nations focused on global trading issues.

C．There were few impediments to trade between the member nations and the United States.

D．The flow of goods between the member nations and Canada was insignificant.

E．Relations between multinational corporations and the governments of the member nations were strained.

请帮忙给出正确答案和分析，谢谢！