Question

use your knowledge of world history and the document below to answer this question.
i received permission from the governor to go to a village of which we had heard, which was a hundred leagues away on the sea - coast, in a town called pachacamac. it took us twenty - two days to reach it. the road over the mountains is a thing worth seeing, because, though the ground is so rugged, such beautiful roads could not in truth be found throughout christendom. the greater part of them is paved. there is a bridge of stone or wood over every stream. we found bridges of network over a very large and powerful river, which we crossed twice, which was a marvelous thing to see. the horses crossed over by them. at each passage they have two bridges, the one by which the common people go over, and the other for the lords of the land and their captains. the approaches are always kept closed, with indians to guard them. these indians exact transit dues from all passengers. the chiefs and people of the mountains are more intelligent than those of the coast. the country is populous. there are mines in many parts of it. it is a cold climate, it snows, and there is much rain.
— excerpt from hernando pizarro’s description of the conquest of peru, 1533
in what ways had the incas adapted their civilization to the environment by the sixteenth century?
the incas built up large floating islands of soil to grow crops in their many lakes.
the incas hunted and gathered using horses they bought from europeans.
the incas built roads and bridges to facilitate networks of exchange in mountainous areas.
the incas imported potatoes and wheat from far distant trading partners to supplement their diet.

Explanation:

The text describes Inca - built roads over mountains and bridges over rivers in mountainous areas, which helped with trade and movement. There is no mention of floating islands, horse - based hunting and gathering, or importing potatoes and wheat in the given excerpt.

Answer:

The Incas built roads and bridges to facilitate networks of exchange in mountainous areas.