What were the key features of the Qin political system?​

To rule the vast territory, the Qin instituted a rigid, authoritarian government; they standardized the writing system, standardized the measurements of length and weight and the width of highways, abolished all feudal privileges, oversaw large-scale construction of what then became the first Great Wall.

Qin dynasty, Qin also spelled Kin or (Wade-Giles romanization) Ch’in, dynasty that established the first great Chinese empire. The Qin—which lasted only from 221 to 207 BCE but from which the name China is derived—established the approximate boundaries and basic administrative system that all subsequent Chinese dynasties were to follow for the next two millennia.

The dynasty was originated by the state of Qin, one of the many small feudal states into which China was divided between 771 and 221 BCE. The Qin, which occupied the strategic Wei River valley in the extreme northwestern area of the country, was one of the least Sinicized of those small states and one of the most martial. Between the middle of the 3rd and the end of the 2nd century BCE, the rulers of Qin began to centralize state power, creating a rigid system of laws that were applicable throughout the country and dividing the state into a series of commanderies and prefectures ruled by officials appointed by the central government. Under those changes, Qin slowly began to conquer its surrounding states, emerging into a major power in China.

Finally, in 246 BCE, the boy king Ying Zheng came to the throne. He, together with his minister Li Si, completed the Qin conquests and in 221 created the Qin empire. Ying Zheng proclaimed himself Qin Shihuangdi (“First Sovereign Emperor of Qin”). To rule the vast territory, the Qin instituted a rigid, authoritarian government; they standardized the writing system, standardized the measurements of length and weight and the width of highways, abolished all feudal privileges, oversaw large-scale construction of what then became the first Great Wall, and in 213, to halt subversive thought, ordered all books burned, except those on such utilitarian subjects as medicine.

marginal cost is a microeconomic measure that us to evaluate the extent to which the level of production of a good is sustainable in accounting, that is, to how many quantities the company plans to profit from the production of the good.

the concept of marginal cost is simple, it means the cost of producing one more item. for example, in the case of pies, the marginal cost is the cost of producing one more pie than those that have already been produced.

it is important to understand that productive activity influences marginal cost. the marginal cost of some goods can be very high, while others may be insignificant. for example, the marginal cost of producing an extra plane is very high. already the marginal cost of a water company to provide 1l more water is derisory.

in the case of pies, the cost involves the inputs, the labor and the fixed cost, which involves the fixed space of the bakery. the level of production initially has the marginal cost decreasing because there is space and manpower available. however, to produce more you have to hire more workers and buy more inputs. if physical space is limited, workers will conflict with places, inputs and their productivity will decrease, meaning there is an optimum point of production for each level of space and manpower. from this point on, the productivity of the workers will be getting smaller because of lack of space, so that the marginal cost of producing one more pie will be increasing. so, although you have not posted the chart, but if you have the answer, you can see that my explanation goes according to the marginal cost curve that will increase from the 4th pie, answer (c).

the answer is d.index