Answer:
During the battle, McClellan kept four divisions of soldiers in reserve and refused to use them to attack Lee's devastated army. McClellan was convinced that Lee was massing reserves for a counterattack.
Explanation:
After Britain won the Seven Years' War and gained land in North America, it issued the Royal Proclamation of 1763, which prohibited American colonists from settling west of Appalachia. The Treaty of Paris, which marked the end of the French and Indian War, granted Britain a great deal of valuable North American land.
give brainiest if you can please.
Answer:
A: Sailing that's the answer