which quotation best expresses the thesis of the article?
A below the ledge where they camp winds a long serpentine road ancient even in those days
B the road system is called the great inca road today because of its role in connecting the vast inca empire
C in its heyday the great inca road was the most extensive and advanced transportation system in the western hemisphere
D using the runner-relay method messages and supplies could be transported up to 150 miles per day