Answer:
Through the matter of efficiency, businesses and organizations have developed ways to make life more convenient for consumers. From fast-food restaurants to online classes, life is much easier than it was 50 years ago. Through efficiency people can have what they want, when they want, and the quickest way possible.
Hopes this helps! ∪ω∪
The correct answer is c.: it served as the be boundary between North Korea and South Korea. The current line is in a similar place, but it's not a straight line, unlike the line running along the 39th parallel.
End of religious unity in Europe
Because at the time when the first monotheistic religions were being spread (Christianity and Judaism for example) the majority of the people (if not all), who actually held spiritual/religious beliefs, believed in polytheistic religions.
This means that they believed in many gods where each god or goddess had their owns specifics and "territory" for which they were responsible.
