A knowledge of styles helps the listener put a musical work in the context of its creation.

historical

Explanation:

all options are correct a) b) c) and d)

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.