C. A union citizen opposed to fighting the war
Your two best options are:
ensures that the 12 notes are given equal important.
and:
is characterized by the works of Arnold Schoenberg.
the twelve-tone technique was made by Arnold Schoenberg and is also called "serialism" and "dodecaphony." It's a method that rejects keys.
I believe it is A, because of the education that could now be explored at universities.
I believe the correct answer is segregation