The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The type of source is a primary source because it is a biography.
Primary sources are the ones that are written or documented by people who lived the event, was part of an incident, or witnessed it. It could be that they wrote a letter, a testimony, a book, they accepted an interview for a newspaper, or took a photograph.
In this case, is a biography of United States President Ronald Reagan- When writing a biography, the document tells the life, accomplishments, and major events of the character.
