What does avant -garde mean?

In French, avant-garde means the “vanguard” or the “advance guard” basically the people and ideas that are ahead of their time.

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

i think it's but if you get it wrong its not my fault : )