The Purpose of public works is to make people's lives better. Thus, the correct answer is C.
The work that is done to improve the lifestyle of citizens by providing them with better facilities to raise their standard of living is referred to as public works.
These public works include the building of roads and water systems, places for food storage, availability of education institutions, the establishment of security offices, and so on.
Therefore, option C to make people's lives better is the appropriate answer.
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