Ricky Nelson's music career was promoted on a TV sitcom

A Neo-Dada artist who made art from "found" materials and images and named his new art form "combine paintings" is:

A. John Cage. B. Robert Rauschenberg. C. Jasper Johns. D. Allan Kaprow. E. Andy Warhol.

Which instrument generates sound by depressing a key, which in turn causes a quill or plectrum to pluck a tight wire string?

A) clavichord B) lute C) crumhorn D) harpsichord