Bach's Well-Tempered Clavier demonstrates the viability of which tuning system?

Which statement describes the general plot of Monteverdi’s Orfeo?

a. a retelling of section of Virgil’s epic poem The Aeneid b. the hero has to rescue his love from the Minotaur c. the hero has to charm and disarm the demons of the underworld in order rescue his new bride d. the hero seeks to revenge the death of his friend, who was killed in battle e. a rollicking tale of seduction that culminates with the damnation of the unrepentant villain-hero to hell

What is the term for the bronze canopy in St. Peter's by Bernini?

A. Baldacchino B. Sarcophagus C. Catacomb D. Retablo