What are some singers, especially sopranos, called because of their egoistic tendencies?

What musicals were written by Rodgers and Hammerstein?A) OklahomaB) The Sound of MusicC) Porgy and BessD) Hair

What will be an ideal response?

To maximize income from consumers, distributors time their tentpole theatrical releases according to

A. the availability of the director to make public appearances. B. the release schedule of competing films--so as to avoid head-to-head conflict. C. the interests of specific regional markets. D. popularity of current cable programming.