This key piece of the Treaty of Paris, set an invisible boundary west of the Appalachian Mountains. It prevented settlers from settling on the newly acquired land from the war. a. The Proclamation Line of 1763
b. The Proclamation Line of 183
c. Manifest Destiny
d. Non Western Movement

a. The Proclamation Line of 1763

Explanation:

The Signing of the Treaty of Paris: the British Crown formally recognized the independent status of the United States of America. Thus, the Treaty of Paris officially ended the American Revolutionary War on the 3rd of January, 1783 and it was signed by a small group of statesmen which were Benjamin Franklin, John Jay, John Adams and a British named David Hartley on the 3rd of September, 1783 in Paris, France.

The Proclamation Line of 1763 is a key piece of the Treaty of Paris, set an invisible boundary west of the Appalachian Mountains. It prevented settlers from settling on the newly acquired land from the war.

Basically, the Proclamation Line of 1763 was decreed by the British (King George III) on the 7th of October, 1763 prohibiting all private citizens and Anglo-American colonists (European settlers) to settle in the land acquired from the French as a result of the Indian and French war.

c, because the american revolution was from 1765 to 1783.