Why did Bernini decorate the baldachino's grooved columns with bronze vines? To symbolize the union of the Old and New Testaments To create a sense of naturalism on the columns To emphasize the blending of classical and Italian design To draw the viewers' eyes upward along the spirals

To symbolize the union of the Old and New Testaments

Explanation: Bernini decorated the baldachino's grooved columns with bronze vines to symbolize the union of the Old and New Testaments.

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