A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule?

answer; /// i believe its(romans);

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.