In ancient Greece, court witnesses were not crossexamined and the jury, selected from the citizenry, received no guidance on points of law; thus, it was extremely important for litigants to make a good impression on the jurors. For this reason, courtroom oratory by litigants is a good source of data on the common conceptions of morality held by the citizens of ancient Greece. Which one of the following, if true, would most strengthen the argument? ['Litigants believed jurors were likely to be impressed by litigants whose professed moral code most resembled their own.', 'Litigants believed jurors were likely to render their decisions based on a good understanding of the law.', 'Litigants believed jurors were more likely to be impressed by litigants whose personality they preferred.', "Litigants believed jurors were more likely to subject the litigants' personal moral codes to close critical scrutiny than were people who did not sit on juries."]