The best response is:
Major economic organizations act as connection points for the global economy, but can also cause tension between the governments of competing nations due to economic rivalries.
This response accurately reflects the dual role of major economic organizations. They facilitate international trade, investment, and cooperation, serving as platforms for countries to collaboratively address global economic challenges. However, these organizations can also be sources of tension, as economic competition and rivalries can arise between nations, particularly when national interests conflict with the goals or policies promoted by these organizations.