I don't if this is right but I put c
The question isn't complete and you might want to ask this in the math section.
But just to help you out, 3x means 3 times whatever "x" is.
I believe the document is the Emancipation Proclamation, and it was issued by president Abraham Lincoln.
Answer:
Anyone born to american soil or anyone who migrated here legally
Explanation:
if you live in america you are an american :)
