It can be inferred from the passage that which of the following is true about the response of Viennese audiences to Don Giovanni? A. The audiences preferred purely moralistic works. B. The response was unequivocally positive. C. They did not know that the composer was attempting to mix musical styles. D. The play's moral themes were offensive to Viennese audiences. E. To say that the response was "mixed" would be a generous interpretation.