The colonist had less of a reason to stay loyal to Britain, The colonists saw increased taxes to pay for the war and The colonist's westward expansion was restricted was a result of the French and Indian War/ Hence, option D is correct.
The Gold Rush, the Oregon Trail, and the idea of "manifest destiny" all served as catalysts for the 19th-century migration of migrants into the American West, which began with the Louisiana Purchase.
The United States gradually grew westward from the late 18th to the mid-19th centuries. This territorial change drove out the majority of the Native American tribes that had lived there for thousands of years before European colonists arrived.
Thus, option D is correct.
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