The answer is variant D ----> the appositive developed phrase
the appositive phrase is " the president of the historical society. It is renaming the noun so to speak and in a way that is the definition of an appositive. hopefully this helps.
The appositive phrase in the sentence is "the president of the historical society," which provides more information about Mrs. Guerrero. This makes option D the correct choice. Appositives help clarify or give additional context about a noun.
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