Which of the Following, If True, Would Most Strongly Support

Multiple Choice

Which of the following, if true, would most strongly support the claim that national prosperity is increased by participation in international business?

A) Countries that participate in international trade have higher GDPs than non-participating countries.
B) Individuals in advanced economies tend to set purchasing trends for consumers worldwide.
C) For most countries, levels of international trade have increased significantly in recent decades.
D) National literacy levels are strongly correlated with a country's degree of political freedom.