The Davis-Moore Thesis states: Select one: a. That economic hardship and skyrocketing inflation is the cause for all social stratification in North America. b. That Karl Marx was correct and that stratification can only be solved by converting to a socialist government. c. That the more society values a particular profession, the more the people in that profession will make. d. That people constantly move up and down the social ladder, and this creates an unstable economy which will eventually collapse on itself.