An advantage of using dry media is

a. it's ability to be erased and/or corrected.

b. it's durability throughout the years.

c. the high cost of materials used.

d. the permanency.

i think it is organic art

i would say the answer is b. zigzag lines of the leaves. i believe this is the answer because zigzag lines go in different direction while the other options like: the vertical lines of the trees, the dotted lines on the road, and the curved lines of the park benches go in one direction.