The correct answes are C) had an understanding of scientific principles, D) had an understanding of mathematics, and F) developed technologies which somehow were lost.
Archaeology has shown that ancient humans had an understanding of scientific principles, had an understanding of mathematics, and developed technologies which somehow were lost.
As scientists and archeologist keep on discovering things that revealed how ancients humans lived, they realized that some civilizations were advanced people that had a full understanding of mathematics, engineering, irrigation techniques, elements that can be seen for instances in the amazing buildings the constructed, or the temples, avenues, and social organization they had.
The list of intelligent civilizations is not short. We have the Sumerians and their impressive Ziggurats. We have the magnificent ancient Egyptians and the mystery on how the built the three pyramids of Giza, in Cairo, Egypt. We have the natural observation posts of Stone Edge, the Inca Civilization city of Machu Picchu in Peru, or the Great City of Teotihuacan in Mexico.
