The answer is option D "<span>a diary entry from an American homemaker in 1933".
Reason:
The answer is option D because the diary of a homemaker from 1933 is the original source of a subject that people can write off of and learn about. A primary source is the original source of a subject for example of homemaking. Its not option A because a magazine summary of the history of voting is not the original version of the history of voting. Its also not option B because a blog entry about how Roosevelt is the most important president is just a opinion. Its also not option C because a book about the civil war that was written by a historian wouldn't be the original source since how he or she gets the information from other sources in order to write the book.