Historical fiction in my opinion would be to put the reader right there in the past. So my best answer would be B.
The indefinite pronouns take the place of nouns for unknown or unnamed people and things.
The Miranda warning is important, because it lets the person in custody know what their rights<span> are.</span><span>
It informs the suspects that they do not need to confess, or talk at all for that matter. It is their constitutional right.
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I don’t see any incorrectly used words, it’s just a more basic sentence.