The correct answer to this open question is the following.
Although you forgot to attach the options for this question, we can say the following.
The statement that accurately reflects the similarities between the Aztecs and the Incas is "They were built mostly by the forced labor of conquered peoples."
During the Mesoamerica times or precolumnian times, two powerful empires existed and dominated most of the regions through war and conquering. They were the Aztecs in Mesoamerica and teh Incas in South America.
The Aztecas inhabited the territory of central México. They built the capital of the Aztec Empire over a Lake, the Texcoco Lake. There, they built the Great Tenochtitlan.
The Incas inhabited the territories of the Andean mountains. There, at the top of the mountains, they built the magnificent Machu Picchu.
Both empires waged war and conquered other territories, They capture the defeated army and made their soldiers slaves.
