It would be "Increased British debt" that was a result of the French and Indian War, which led to the British taxing the colonies, which helped lead to the Revolution.
This depends on if a refers to the current government.
If it is, then the answer is D. none of the above
However, the articles of confederation, america's first government, was the first thing that Americans did after the war, so the answer could also be A
D I believe hope this helps