Answer: - The people
Explanation: A constitutional monarchy is a form of government in which a monarchy acts of a state within the parameters of a written, unwritten, or blended constitution.
Rapid growth in population and domestication created more complex religious beliefs and divisions in social class and these were the new cultural changes. This created division among people and the creation of economically strong and weak groups. I hope the answer helps you.
Diversity can contribute greatly to scientific and literary achievement. Diversity in a given population can provide a community - however small or large - with different viewpoints, ideas, and concepts, both in terms of science and literature. In fact, the history of science and literature shows that an influx of people from different cultural groups can provide a community - rather quickly, at that - with a tremendous measure of new knowledge.
These countries differ in many ways: linguistically speaking, Poland an Serbia, which are slavic, do not share the same origins with Hungary, which is not an Indo-European language. Secondly, Poland and Hungary are countries which did not separate themselves, nor socially, nor geographically after 1989 when communism ceased to exist as Serbia used to belong to a bigger country, Yugoslavia, in the past.
