Help me make sure i got this question right?

B) contrast

Explanation:

Frequently, an emphasis is achieved by means of contrast. Contrast can be achieved in a variety of ways and artists often employ more than one technique in a single piece. A contrast in color, value, and texture can certainly draw you to a particular area

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.