Name the term used for the public address loudspeaker system from the control room to the studio

Kandinsky saw an affinity of this with his painting

a. Realism b. Classical sculpture c. Music d. Gothic architecture

Which term describes the style of Greek ceramics in which a thin coating of black-firing clay covers the red clay of the vessel, and then details are scratched into the surface with a needle?

A. Red figure B. Charcoal C. Silverpoint D. Black figure