Final answer:
The World Trade Organization (WTO) stimulates international commerce and resolves trade disputes.
Step-by-step explanation:
The General Agreement on Tariffs and Trade (GATT) transformed into the World Trade Organization (WTO) in 1995. The activities of the WTO include stimulating international commerce and resolving trade disputes. It is not responsible for the enforcement of the Foreign Corrupt Practices Act (FCPA). The elimination of trade barriers between Canada, Mexico, and the United States falls under the North American Free Trade Agreement (NAFTA) and not the WTO. Therefore, option 'a) stimulating international commerce and resolving trade disputes' is the correct answer.