In context, the primary function of the final sentence of the passage is to A. provide evidence to undermine a central claim in Ogilvie's argument B. summarize the most important aspects of the data Ogilvie cites to support her analysis. C. illustrate how the Wildberg weavers' guild differed from other craft guilds of the period. D. quantify the amount of formal training typically received by Wildberg master weavers. E. clarify an ambiguity in the status of master-widows as guild members.