Which jazz style best describes the listening example?

When performing a jazz tune, jazz musicians base their improvisations on the

a. mood of the audience. b. tune's chord progression. c. number of musicians in the group. d. chord changes of another tune.

Jan van Eyck's Giovanni Arnolfini and His Wife contains many symbols. Which of the following is an allusion to fidelity?

a. The dog b. The bedpost c. The whisk broom d. The mirror