Although many seventeenth-century broadsides, popular ballads printed on a single sheet of paper and widely sold by street peddlers, were moralizing in nature, this is not evidence that most seventeenth-century people were serious about moral values. While over half of surviving broadsides contain moralizing statements, and it is known that many people purchased such compositions, it is not known why they did so, nor is it known how their own beliefs related to what they read. Which one of the following, if true, most strengthens the argument? ['In many moralizing ballads, the moral content was confined to a single stanza expressing a pious sentiment tacked onto a sensationalized account of crime and adultery.', 'Well-educated people of the seventeenth century held broadsides in contempt and considered broadside peddlers to be disreputable vagrants.', 'The clergy occasionally stuck broadsides warning about the danger of strong drink on the doors of seventeenth-century alehouses.', 'Some seventeenth-century ballad sellers also sold sermons printed in pamphlet form.']