Respuesta :
I took music classes from Kindergarten till now, and I am positive (not saying if I am right or wrong) that it is A. Harmonic Improvisation because Jazz Music is surrounded with harmonious melodies and Jazz has a harmonious tune to it if you listen very closely to it.
Answer:
It would be B. Melodic Improvisation.
Explanation:
I just took the test, and it was right! :)