The correct answers are B and D.
B) The Inca road system, known in Quechua language as <em>Qhapaq Ñan</em>, was the largest transportation system in Pre-Columbian South America. It connected important nodes of the Inca Empire following the Andes, from the North in what today is Colombia to the South in what today is Argentina.
D) They also built large stone cities in the Andes mountains, the most famous one among them was Machu Picchu, which is made completely out of giant blocks of stone fitted to each other without mortar.
Industry, Defense, Agriculture, and Science
Explanation:
The 13th Amendment banned slavery and all involuntary servitude, except in the case of punishment for a crime. ... The 15th Amendment prohibited governments from denying U.S. citizens the right to vote based on race, color, or past servitude.
The correct answer is b) articles of confederation
The articles did not deal with human rights and welfare because they were mostly about establishing a government to begin with. When things such as state and individual rights started popping up, they abandoned it and adopted the US constitution with the bill of rights.