The sentence that can be used as a supporting detail that the government can provide certain things to its citizens is the mention of the obligation of the government to the people.
<h3>What is a Supporting Detail?</h3>
This refers to the use of evidence to validate a given claim to show that it is true or not with the use of factual or statistical data.
Hence, we can see that from the complete text, we can see that there is a narration about the government and the people and how they have various obligations and duties to their citizens.
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Answer:
A. first-person
The writer of the book narrates as himself, and uses "I" in doing so, therefore is told in first-person :)