Straight, perpendicular lines of color that create right angles in the upper left-hand corner. The artist who painted this piece of modern art focused mainly on and .
a.
balance; design
c.
symbolism; design
b.
balance; proportion
d.
imagery; arrangement

B

Explanation:

Balance; proportion

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