Due to the Great Depression, economic liberalism lost its influence, and the gold standard system that had long maintained a stable international currency exchange system was abandoned by the US, Britain, France, Canada, Belgium, the Netherlands, and Scandinavia. Britain, the heart of trade liberalization in Europe, abandoned free trade in 1931, while both Britain and France sought economic recovery through a “domestic-oriented and inward-looking” economic policy. Similarly, the US went into a deep isolationism under the President Franklin Roosevelt by minimizing its international transactions (Taylor, 1961: 90). In the wake of economic liberalism’s destruction, protectionism and the command economy gained popularity. The correct answer is A.