Hi there!
Your answer would be ~ B) It is located in the Darling river
Hope this helps you!
~DL
I would say B-growth of a villages into cites or C
Hydropower! Geothermal is heat coming from the earths core so obvi no, hydro kinetic, is not it but im not sure how to explain sorry, and solar thermal is from the heat of the sun.
South America, which is the home of the Andes mountain range.