WTO is an:

International organisation

The correct answer is Option 2 - International organisation

The World Trade Organisation (WTO) is an international organisation which sets the rules for global trade. This organisation was set up in 1995 as the successor to the General Agreement on Trade and Tariffs (GATT) created after the Second World War. It has 164 members (as on 29 July 2016). All decisions are taken unanimously but the major economic powers such as the US, EU and Japan have managed to use the WTO to frame rules of trade to advance their own interests. The developing countries often complain of non-transparent procedures and being pushed around by big powers.