Answer:
II and III
Step-by-step explanation:
I: Why would people pay more to live somewhere?
II: People like accessibility, so it makes sense that they want to live somewhere where there is good infrastructure
III: People will be drawn to the potential to make money off of the natural resources and/or related work in the field of extraction of said natural resource.
IV: Nobody would want to live an an economy that is in shambles, and that they have to pay more for simple things due to immence trade restrictions.
II and III are correct, where I and IV simply are not.