Final answer:
A primary source document is original material that provides direct evidence or information about a specific topic or event.
Step-by-step explanation:
The best definition of a primary source document is a source that consists of original material, such as an interview.
Primary source documents are firsthand accounts or original sources created during the time period being studied. They provide direct evidence or information about a specific topic or event and are often used by researchers to gain insight and understanding.
For example, a diary from a soldier during World War II or a government document from the time of the American Revolution would both be considered primary sources.
Learn more about Definition and importance of primary source document