The meter of stravinsky's the rite of spring is a. fluid and unclear. b. irregular and changing. c. double. d. triple throughout the piece.

His rite of spring was known for irregularity, but I am not sure about the details..

In “The Rite of Spring” Stravinsky turned the musical hierarchy up side down The melody is (mostly snippets and shards, turned this way and that, as a Cubist would an object) and harmony (bi-tonal) in service to it.

Opposition of two melodic ideas is the  right answer 

∵they depict sad lonely people  ∵  figures in them have long limbs and faces, similiar in style to paintings by el greco.