GRE Reading Comprehension: Kaplan-GRE阅读Kaplan - NX2SZWN93GVZRUKDG$

Which CANNOT be inferred from the passage? A. The example of interpolation discussed in the passage would be illegal today. B. Authors and playwrights in Shakespeare's time might have recruited assistance when composing their works. C. Shakespeare used Middleton's writing without his consent.