Final answer:
George Washington negotiated a favorable peace treaty with Great Britain and passed the Northwest Ordinance.
Step-by-step explanation:
The correct answer to the question is George Washington. George Washington negotiated a favorable peace treaty with Great Britain and also played a significant role in passing the Northwest Ordinance. The Treaty of Paris of 1783, which officially ended the American Revolution, was negotiated and signed by John Adams, Benjamin Franklin, and John Jay on behalf of the United States.