Urbanization is
a) cities that serve as centers of commerce and governance of humans
b) settlements that support societies with governments, public buildings, laws and taxes
c) the centralization of human populations living in densely populated cities
d) the development of technologies, market economies, and social and government structures.
e) growth of populations in rural communities with the focus on growing your own food and supporting less technological advancements

C) the centralization of human populations living in densely populated cities

Explanation:

We refer to urbanization, as the people move to settle and form a city that will quickly spill over to nearby areas. The urban settlement has grown to susch a large population size and density that its  quality of life or safety will be at risk. Since commercial, industrial and cultural centers now in the world are urban, they are having high pollution levels, and the environment is being damaged.

This leads to affect the health of the inhabitants, and lower quality standards of life.

The industrial revolution was the primary force leading the first settlements, and until the present the tendency worlwide is to ever increasing number  of cities, the map below shos some important points to consider worlwide:

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