Answer:
C, the differing religions in a nation is more closely related to culture
The Qin introduced common coinage, meaning a form of ´fiat´ currency backed by the central government. It was called a ´ban liang´, and they could be issue by local nobles as well as by the emperor. A system of coinage is important for the unification of a massive empire because it facilitates trade and the recollection of revenue for the central government. As such, it becomes easier to raise a common army, which is essential for unification of different warring states.
The ancient Greeks actually lived in houses made of dried mud bricks. Unfortunately, their walls are not very strong. It was common for houses to be broken into pieces, and most had to be renovated. The roofs of the houses are covered with mud panels and the windows are small and covered with wooden shutters.
The answer is majoritarian. Social security is a concern for all people. It caters benefit as a welfare for the people. It is part of the Social Policy that provides empowerment and security. It is the responsibility of the government to enact this for future consumption.
Poland, and parts of Belgium and the Netherlands. They were spared as the result of quarantined their borders and isolated themselves.