The book that titles is capitalized correctly is The Era of Franklin D. Roosevelt: A Brief History with Documents.
The correct option is D.
What is capitalization rule of grammar?
The capitalization rule in English is always capital the first letter of the sentence and proper nouns in the sentence.
The words that name a specific person, place, or things are also capitalized.
The words after colon is written in capital.
In the given sentence, the specific words are capitalized.
Thus, the correct option is A.
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