It can be inferred from the passage that most modern critics assume which one of the following in their interpretation of Webster's tragedies? A. Webster's play tended to allegorize the conflict between good and evil more than did those of his contemporaries. B. Webster's plays were derived more from Italian than from English sources. C. The artistic flaws in Webster's tragedies were largely the result of his ignorance of the classical definition of tragedy. D. Webster's tragedies provide no relevant basis for analyzing the moral development of their characters. E. In writing his tragedies, Webster was influenced by the same sources as his contemporaries.