Igor stravinsky shocked the music world when writing his ballet by adding to "the firebird."

The correct answer is B) Jazz.

Igor Stravinsky shocked the music world when writing his ballet by adding Jazz to “The Fire Bird”.

Igor Stravinsky (1882-1971) was a talented music composer that later in his life became an American citizen. He wrote beautiful pieces of music such as “Symphony in C”, “The Rite of Spring”, “Symphony of Psalms”, and “Persephone.” Stravinsky shocked the music world when writing his ballet by adding Jazz to “The Fire Bird”.

The other options of the question were, a) expressionist atonic sounds, c) ragtime, and d) American influence of syncopation.  

really and truely i dont know sorry