Each of the following assertions consistent with Seneca's authorship of the plays appears in the passage EXCEPT A. There is no known author by the name to which the plays are attributed. B. Playwrights in the early Roman Empire were politically vulnerable. C. There are references in the play to Ovid. D. There are references in the plays to Seneca's philosophical works. E. There are quotations from the plays in the works of Quintilian.