Answer:
B. The concept of utility.
Explanation:
Utility in economics refers to the amount of satisfaction that a consumer derives from consuming units of a commodity at a particular point in time.
The concept of utility is based on the assumption that the consumer is rational in the sense that he or she aims at maximising utility with limited income.
Also , marginal utility diminishes as a consumer consumes additional units of a commodity.
The correct choice is B
<span>To reestablish tradition, the government opted to reintroduce the system of imperial examinations for the choice of state officials. Thus, in order to pass these exams, the candidates should have contact with the classics, passing, therefore, by Confucianism.
</span><span>It revived the civil service examination system of the Han.
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Answer:
strict security should give to protection area
So there is a circular flow of income in between two sectors – household sector and firm sector. This circular flow of money will continue indefinitely. In this way the economy functions. But, it is a fact that this flow of money income will not always be same.
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