Answer:
B, cuz recall, remind and research isn't.
This environmental problem described by Garret Hardin raises important questions about the use of depleted natural resources. The tragedy of the commons occurs when an individual or company uses a natural resource for their own profitable interest only, even if the disorderly use of that resource ends up depleting it and harming society as a whole.
In the people's republic of china "a new set of social classes is gradually emerging".
Social stratification is a sort of social separation whereby a society gatherings individual into financial strata, in light of their occupation and pay, riches and economic wellbeing, or inferred influence. A few social orders are more open in such manner, while some are more shut. The significant frameworks of stratification are slavery, estate systems, caste systems, and class systems.
The book 'things fall apart' talks about a civilized society. For a society to be called civil, there must be order which include a hierarchy, a system of government and laws. All these are present in the book.