How did robert henri propel realism?

Robert Henri was born Robert Henry Cozad in Cincinnati, Ohio to Theresa Gatewood Cozad and John Jackson Cozad, a gambler and real estate developer.[1][2] Henri was a distant cousin of the painter Mary Cassatt.[3]In 1871, Henri's father founded the town of Cozaddale, Ohio. In 1873, the family moved west to Nebraska, where John J. Cozad founded the town of Cozad.[3][4]

Henri gathered young realist artists and exhibited their works.

here's your

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