What human ability seems as deeply ingrained as the impulse to make and respond to art?

What musical concept did Miles Davis pioneer on his composition entitled "Milestones"?

a. Improvisation based on rapidly shifting chords b. The twelve-bar blues c. Improvisation based on modes or scales d. Free improvisation

What instrumentation does the Paul Motian Trio feature?

a. Saxophone, piano, bass and drums b. Violin, drums and guitar c. Trumpet, Saxophone and drums d. Saxophone, guitar and drums