The correct answer is b.
The Incas:, his empire was located in South America. It went from the north of Chile to the south of Colombia, covering the present territories of Bolivia, Peru, Ecuador towards the Pacific. Its territory was located partly on the mountain range of the Andes.
The Inca economy, led by the state, was mainly agrarian, and was based on crops such as potatoes and corn.
The lands belonged to the state and were distributed each year among various social classes. Well, there was no private property.
The Incas devised an excellent communication network of more than 6,000 km in length, with roads and poles. One news took five days to travel the 2,000 km between Quito and Cuzco.
Those roads were necessary for two reasons.
• For the rapid movement of their armies throughout the empire.
• As means of communication for its rapid services
They built roads between the kingdom of Ecuador to the southern border of Argentina and Chile, creating an extensive communication system.