Answer:
The correct answer is E. The newest trade block in Latin America is UNASUR.
Step-by-step explanation:
UNASUR is a political and economic community of the twelve independent states of South America. It basically consists of two existing customs unions: Mercosur and the Andean Community.
The Treaty establishing the Union was signed on May 23, 2008 in Brazil. The goal of the South American nations is to develop and give place to an area of integration and unity in the cultural, social, economic and political development among its members.