In the South, there are fewer types of folk housing. The text points to which of the following as a probable reason:

A) There was a very small middle class, only a few wealthy and a large underclass.
B) There were not enough building materials to construct large houses in the South.
C) Laws prevented people from building any type of folk housing other than shotguns, saddlebags and dogtrots.
D) There were only Anglos and Blacks in the South, so there were fewer ideas about how to build house.