Which of the following describes a difference between OPEC and the WTO?

While the Cold war years followed most Western European countries erased barriers and increased trade with the US as the main partner. The American products were highly demanded and soon the need for foreign aid in the reconstruction of devastated countries occurred.

really and truely i dont know sorry

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.