Answer :
The correct answer is secondary source.
A primary source gives firsthand evidence about something. In this case, Frederick Douglass' diary or autobiography would be considered a primary source. An interview with Douglass would also be a primary source. A transcript of one of his speeches would also be a primary source.
Jennifer, however, has a source that does not provide a firsthand account. Instead, this source analyzes Douglass' words, making her source a secondary source.
A secondary source analyzes or discusses a primary source. Secondary sources are generally written much after the events being described. Examples of secondary sources are biographies, reviews, articles, etc.
Therefore, the correct answer is secondary source.