a virtuoso saxophonist nicknamed bird, he was one of the two leading pioneers of bebop and the composer of koko.

Charlie Parker

Explanation:

"Charles Parker Jr., nicknamed "Bird" and "Yardbird," was an American jazz saxophonist, band leader, and composer. Parker was a highly influential soloist and leading figure in the development of bebop, a form of jazz characterized by fast tempos, virtuosic technique, and advanced harmonies."

Wikipedia

i believe the answer is: a.  abstract forms were often used to represent human figures.

representing human figures in abstract forms is often used in the geometric period, not hellenistic  period.   during the hellenistic  period,   aesthetic value derived from creating arts which mimic the actual shape of a certain object or individuals.

hope this ! < 3