Do stock characters or characters with a single trait lack psychological depth?

What long-established practice does Gerhard Richter reject?

A. the signing of art B. working in a singular style C. exhibiting art in public D. providing titles to art

Opera began when a group of noblemen

a. entered into an entertainment business venture b. wished to re?create musical dramas similar to ancient Greek dramas c. wished to make the singing of madrigals more popular d. wanted to create music for students in music conservatories e. wished to set Shakespeare’s plays to music