In music, dynamics refers to the ___ speed of the metronome
speed of the music
tone quality of a sound
volume (loudness or softness) of sound

Explanation: Dynamics refers to the volume of a sound or note. The term is also applied to the written or printed musical notation used to indicate dynamics. Dynamics are relative and do not refer to specific volume levels.

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.