Answer:
Option: A) A large complex of buildings high in the Andes
Explanation:
The Machu Picchu built during the 15th century as part of the Inca civilization. Its rise as an Inca Citadel and became an estate for the Inca emperor Pachacuti. The site continue to be hidden during the colonial period and came into notice when Hiram Bingham founded it in 1911 by conduction Yale Peruvian Expedition. The entire complex of buildings erected on the mountain with sophisticated irrigation channels systems for the fields. There are approximately 200 buildings, in the eastern section of the city was probably residential, and the western for religious and ceremonial purposes.
