What Was the Most Significant American Failure in Negotiating the Peace

Multiple Choice

What was the most significant American failure in negotiating the Peace of Paris, 1783, which ended the Revolutionary War?

A) Commercial concessions allowing Americans to continue to sell products in England.
B) Compensation of slave owners whose slaves joined the British army.
C) Failure to convince England to return territory seized from France by the Peace of Paris, 1763.
D) Failure to secure a British guarantee not to attempt to reclaim American states as colonies.