What was the name of the new short note value recognized by theorists in the Ars nova?

In place of images the iconoclasts used only symbolic forms already familiar in Early Christian art. Which of the following symbolic forms would be acceptable?

a. bearded christ on the cross b. the holy family c. vacant throne of god d the virgin mary

What is a supergroup?

a) A group that is praised by both critics and audiences b) A group that can perform in a number of different styles c) A group that had elaborate stage shows d) A group whose members were all previously in successful bands