Whose "music of mystic serenity" captured the conservative quality of the Catholic Reformation?

What is the best description of a cross vault?

a. arches stacked on top of one another b. a series of arches intersecting around a central axis c. the intersection of two vaults at right angles d. a series of connected arches open on two ends

Who was Lenin's highly respected minister for the arts in post-revolutionary Russia until the early 1930s, when he was replaced by an ally of Joseph Stalin?

A) Vasili Kandinsky B) Nicolas Slonimsky C) Anatoli Lunacharsky D) Joseph Goebbels