The application of the concept of evolution to the development of human societies over time. It is an idea which emphasizes the struggle for existence of each society, and the survival of the fittest of them. Such ideas have been used to justify naked capitalism, and have been extended to defend power politics, imperialism, and war.
Some elements are line shape value , color, proportion/ texture/ shading.
The answer is B. Similar of size
If your asking for true or false the answer is true:
Aperture controls the amount of light reaching the film or digital sensors...