Prior to the Civil war, the West attracted many immigrants because land was cheap and it was seen as the land of opportunity. The correct option among all the options that are given in the question is the first option. There were many forested lands and those when cleared can proved good for cultivation.
The answer is WEST, the west attracted many immigrants, mainly because of California that's what was considered the land of opportunity, and back then the land was cheap not so much now days.
