Respuesta :
The correct answer is D. A historian reads a journal entry by a Pilgrim.
Explanation:
In history, a source refers to a document, artifact, record, photograph, etc that provides information to historians about an event they are studying. Additionally, the source is primary if it is created during the historical period being studied and by someone that is part of the event. In the case of "A historian reads a journal entry by a Pilgrim", this is the only one that includes a primary source because the journal was probably written during the Plymouth Colony in 1620 which is the event being study and therefore this source acts as a first-hand account or a primary source.