Chromaticism refers to:

a) repetition
b) costuming
c) using notes of the chromatic scale
d) different lighting techniques

C.) using notes of the chromatic scale

Explanation:

A P E X

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Hope this helps

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.