Which one of the following studies would provide support for Rubinstein's claims? A. a study that indicated that many members of the commercial elite in nineteenth-century London had insignificant holdings of real property B. a study that indicated that in the nineteenth century, industrialists from the north of England were in fact a target for working-class people C. a study that indicated that, in nineteenth-century Britain, probate values of goods for sale were not as high as probate values of cash assets D. a study that indicated that the wealth of nineteenth-century British industrialists did not appear to be significantly greater when the full value of their real property holdings was actually considered E. a study that indicated that at least some members of the official governing elite in nineteenth-century Britain owned more real property than had previously been thought to be the case