They allowed laws to remain resolute despite leadership.
Explanation:
A nation-state is a political unit which consists of two different parts. A Nation is a country where people live and share a common language, religion, and history. The state is a sovereign province with an independent government that rules. The rise of the nation-state followed by mounting the status of administration and the bureaucratization. The bureaucracies provide democratization as it eliminates the feudal and patrimonial form of administration.
It was the "c. introduction of the assembly line" that enabled mass production in the 1920s, since this meant that products could be made with a division of labor.
This statement most likely comes from the background research (OPTION B) of the student´s lab report. Since from the information obtained a priori he considers that it could be deepen with further research to finally be able to establish what are the colors to attract the butterflies.
In much the same way as Christianity, Islam too gave a belief of a promised better life once life was over. If you cannot pay a man, convince him pay will come once dead.