The Proclamation announced the acceptance of black men into the Union Army and Navy, enabling the liberated to become liberators
<span> José Rizal was a Filipino nationalist and polymath during the tail end of the Spanish colonial period of the Philippines</span>
D shorter enlistments for colonial troops
A primary source is made by someone who was there during the event. In this case, it’s the American Revolution. There isn’t a provided picture (well at least on my screen there isn’t) so I can’t give whatever the choices are, but some examples of a secondary source are:
textbooks, book reviews, reprints of maps/artworks, etc.