The correct answer is - natural selection.
This is a typical case of natural selection, where we have a group of people that have similar physical traits, that are selected and than isolated from any external influence, so with interbreeding they manage to keep their physical traits for generations to come and thus create a population that resembles their initial ancestors.
Answer:
D
Explanation:
The television, printing press and newspaper were developed long before 1990s.
Frugalitas--"Frugalness": Economy and simplicity of style, without being miserly. Gravitas--"Gravity": A sense of the importance of the matter at hand, responsibility and earnestness. Honestas--"Respectibility": The image that one presents as a respectable member of society.
American nationalism increased, creating an influx of volunteers for the military.