Which international organisation supports globalisation and free trade?

The correct option is WTO.

Step 1: Understanding Globalisation and Free Trade
Globalisation refers to the increasing interconnectedness and integration of economies, cultures, and populations across the world. Free trade is a core component of globalisation, encouraging the movement of goods and services across international borders with minimal tariffs, quotas, or restrictions.

Step 2: Identifying the Role of the World Trade Organization (WTO)
The World Trade Organization (WTO) is the global international organisation dealing with the rules of trade between nations. Established in 1995 (succeeding GATT), its primary functions include:
1. Administering trade agreements.
2. Providing a forum for trade negotiations.
3. Resolving trade disputes between member countries.
4. Promoting free, fair, and smooth international trade.

Step 3: Analyzing Other Options
• WHO (World Health Organization): Directs and coordinates international health matters within the United Nations system.
• UNESCO (United Nations Educational, Scientific and Cultural Organization): Promotes world peace and security through international cooperation in education, arts, sciences, and culture.
• IMF (International Monetary Fund): Focuses primarily on ensuring the stability of the international monetary system, exchange rates, and financial assistance to countries in balance of payments distress, rather than directly regulating international trade rules.

Therefore, the organisation specifically dedicated to supporting globalisation through free trade rules and negotiations is the WTO.