Use the map below to answer the following question: Physical map of South America, with longitude and latitude lines spanning from 100 W longitude to 15 W longitude, and 45 S latitude to 15 N latitude. Orange coloration shows Andes Mountains to the west, and Brazilian Highlands to the east, as well as Guiana Highlands to the north. Amazon River Basin is shown, as well as clear views of the Pacific and Atlantic Oceans to the west and east, respectively.
© 2012 The Exploration Company

What physical feature shown here influenced the Incan civilization?

A. the Amazon Basin
B. the Andes Mountains
C. the Brazilian Highlands
D. the Guiana Highlands