Who was instrumental in internationalizing the repertory of La Scala?

Which of the following did Duke Ellington NOT do?

a. write film scores for Hollywood b. write concertos and concert pieces, and hundreds of tunes that have become jazz standards c. work as a major bandleader in the swing era d. direct opera at the Metropolitan Opera House

Name features of “Dan Sekarang.” (“And Now”)

What will be an ideal response?