What does the concept of learning set suggest? A. Imagination is the key to problem solving

imagination based on particular rules that make sure that your answer is logical

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.

i think the answer is disc jockeys