GRE Reading Comprehension: ETS-GRE阅读ETS - AWHVV9G39Y142MWQ7

The passage suggests that which one of the following is most likely to have been true of medieval guilds? A. Few guilds of any importance existed before the mid-fourteenth century. B. Many medieval guilds exercised influence over the actions of their members. C. Most medieval guilds maintained more exacting ethical standards than did the associations of canon lawyers. D. Medieval guilds found it difficult to enforce discipline among their members. E. The ethical standards of medieval guilds varied from one city to another.