The Great Inca Road is a network of roads that, in ancient times, extended 20,000 miles to connect the distant parts of the Inca Empire to its capital Which ideas should be added to this sentence to create a complete summary of the article? Select TWO correct answers. 4 Royalty , soldiers , merchants , and messengers used the road system , which crossed many types of terrain . Modern - day people who live along the original Inca road system are served by the 3,000 miles that remain . Known as the "royal highway," the Great Inca Road allowed the king to travel in a litter carried by strong porters . Although the roads were built long ago, they had many impressive features , including distinctive hanging bridges . Culverts , drains , and walls stopped large amounts of water from collecting on the surface of the system's roads.
- The Great Inca Road was also used by royalty, soldiers, merchants, and messengers.
- The road system crossed various types of terrain.