When you hear someone say the word “BEAT”, referring to music, what does that mean to you?

Producers will compose beats as background music independent of the vocal.

(that's all I got.)

the main thing           is the answer what you saw the most is it and i forgot what it's called sorry my friend told me this

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.