Which sentence uses italics or quotation marks correctly?

A.
Of course, the story was based on William Shakespeare's play Romeo and Juliet.

B.
Before it was a movie, West Side Story was a Broadway play, with music by Leonard Bernstein and lyrics by Stephen Sondheim.

C.
One famous song from the musical is Tonight, a duet sung by the characters Maria and Tony.

D.
The Academy Award for Best Picture in 1961 went to the musical film "West Side Story."