Which organization works for the liberalization of foreign trade and investment?

The World Trade Organization (WTO) is the correct answer because its primary function is to liberalize international trade and investment. It achieves this by reducing barriers to trade, such as tariffs and quotas, and by establishing a framework of rules for global commerce. The WTO also provides a forum for trade negotiations and a mechanism for resolving trade disputes among its member countries.

• The United Nations (UN) focuses on international peace, security, human rights, and social development, not primarily trade liberalization.
• The World Bank provides financial and technical assistance to developing countries for development projects.
• The International Monetary Fund (IMF) focuses on global monetary cooperation and financial stability, facilitating international trade through exchange rate stability, but the WTO is the specific body for trade liberalization rules.