means to enclose something tightly, such as is done with stones or tiles, and a filler, when creating mosaics. a. Pasting c. Embedding b. Impacted d. Leading

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.