I would choose to evaluate the effectiveness of the solution. Which would basically mean that you are double checking that the solution is correct
I think it is b but I am not even sure but if not b it would be a i think. Sorry I can't be more of help. Good Luck:)
committee on public information is the correct answer Gradpoint
Igor Stravinsky's ballet caused a riot in its opening night because the harmonies, melodies and rhythms were very unconventional. Igor was a Russian pianist, composer and also a conductor. He was born on 17th of June in the year 1882 and died on 6th of April in the year 1971. He is considered as one of the most influential composers of the 20th century.