Final answer:
Before 1763, most English colonists in North America settled east of the Appalachians, which is true. The Proclamation Line of 1763 restricted them from moving westward, causing tension between the colonists and the British government.
Step-by-step explanation:
Prior to 1763, most English colonists settled on the eastern side of the Appalachian Mountains. This statement is true. After Britain's victory in the Seven Years' War, many colonists anticipated the opportunity to move westward and expand their settlements beyond the Appalachians. However, the British government introduced the Proclamation Line of 1763, which prohibited colonial expansion west of the Appalachian Mountains, aiming to prevent conflict with Native American tribes and to minimize the costs of defending new territories. This policy was met with hostility by the colonists, who saw it as an unfair restriction of their economic opportunities, particularly after their contributions to the war effort.