The answer is option D "a document made by someone who actually saw an event." A primary source would be like a witness during a event. They can give reliable information on what happened during that event. Main primary sources are: documents, pictures or photographs, and objects that can explain what happened during a event.
Hope this helps!
<span>Peter Minuit , Hope this helps</span>
The U.S. in 1846 was not justified in going to war with Mexico, they didn't have justification to respond with violence.
