Answer: See explanation
Step-by-step explanation:
Sourcing a document simply means inquiring about where a particular document came from in order to know the origins of the document, and also try to understand it.
Sourcing a document is regarded as the first step to take in order to understand historical documents.
Historians source a document by looking at who the author is, when the document was was created, why was it created and the purpose of the document.