More mountainous is Western South America. Through all of the western part of the continent, as a linear mountain range are spread the Andes, in a direction from north to south. They are also the highest mountainous parts of the continent, by far the longest, and also are one of the steepest mountains.
The answer is D: Settlement patterns are influenced by the availability of resources.
Why not the others (a,b, or c) ?
In C, They didn't provide information for people who live there for one and a, and b are irrelevant.
Hope this helped you! :)
D Easy I think because all the others are posotive