Which country was an important route by which the treasures of the inca’s were transferred to the spanish? belize el salvador guatemala panama

The correct answer is D. Panama was an important route by which the treasures of the Incas's were transferred to Spain.

The Colonial Transisthmian Route of Panama was a land interchange between the Atlantic and the Pacific oceans across Central America. Spanish trading system crossed Panama in what was known as the “Intercontinental Royal Road”, during the 16th to the 19th centuries.  

The Colonial Transisthmian Route of Panamá connected Panama to regions such as Spain, Canarias Islands, and the Caribbean.

why was the national assembly formed by the third estate?

the estates-general had not been assembled since 1614, and its deputies drew up long lists of grievances and called for sweeping political and social reforms. the third estate, which had the most representatives, declared itself the national assembly and took an oath to force a new constitution on the king.