The group of instruments that invariably plays the ritornello in a concerto grosso

Actors are usually responsible for placing their personal props on stage or on the props table

Indicate whether the statement is true or false

Coffering was a useful architectural device in that it performed what function?

a. Helped expand interior space b. Helped lighten the weight of a dome or arch c. Supplied an accurate means of measurement for the Romans d. Enabled extensive road systems to be built