The correct answer is C. Arches.
Explanation
The arch is the name by which a type of semicircular structure is known, which is used as a support for buildings because it provides great stability to them, due to the distribution of the load that allows it to support large amounts of weight. This form of architecture developed in ancient civilizations like Mesopotamia. However, its greatest use was in ancient Rome, where it was used in different structures with domestic functions such as sewers, aqueducts and bridges; and larger buildings such as theaters and the monumental Roman Coliseum. So, the correct answer is C. Arches.
Answer:
WTO is an intergovernmental organisation ; NAFTA is a 'free trade area' ; EU is an 'Economic Union'
Explanation:
The North American Free Trade Agreement (NAFTA) , European Union (EU) are economies at different level of Economic Integration.
World Trade Organisation is an international intergovernmental organisation, for regulating International Trade - of goods , services , intellectual rights. it also provides framework for trade agreements & dispute settlement. It has 165 member countries,
NAFTA is a 'free trade agreement' between 3 countries : US, Mexico, Canada; which is the lowest form of economic integration - including barrier free trade between the member countries.
EU is an 'Economic Union' between many European countries ; which is the second highest form of economic integration - including barrier free trade, common external tariffs, free labour & capital movement, common monetary & fiscal policy.
