Answer:
The answer is a. British activities and landholdings in North America were an impediment to western settlement and peace along the frontier.
Step-by-step explanation:
The Treaty of Paris, signed in Paris by representatives of King George III of Great Britain and representatives of the United States of America on September 3, 1783, ended the American Revolutionary War. The treaty set the boundaries between the British Empire in North America and the United States of America, on lines "exceedingly generous"to the latter.
The United States would most definitely be stopped in expanding west by the British. Also, the British still held a lot of land in the United States and this would definitely prevent expansion.