Which of the following films is considered the first feature-length documentary? night and fog monterey pop hoop dreams nanook of the north

Nanook of the North

Explanation:

Nanook of the North is considered the first feature-length documentary in history. This was a silent documentary film by Robert J. Flaherty, who recorder the lives of the Inuit in 1922. Several sections of the film are staged or exaggerated for dramatic effect. However, the film is still considered a breakthrough in the history of cinema, as well as an important source of information on the lives of the Inuit people.

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.