Final answer:
After the Revolutionary War, despite some pro-Union sentiment, Tennessee saw an increase in American settlers moving to the state, leading to the continued expansion and displacement of native populations.
Step-by-step explanation:
Post-Revolutionary War Tennessee
After the American Revolutionary War, the situation in Tennessee evolved as part of broader regional dynamics. Despite entrenched pro-Union sentiment, especially in the eastern part of Tennessee, the state faced significant pressures during the subsequent period of the Civil War. Many Tennesseans, particularly from the eastern counties, opposed secession and voted against Tennessee's declaration of independence from the United States.
Contrary to declaring independence, Tennessee was marked by a significant internal conflict over the issue. Ultimately, the state government, dominated by secessionists, declared martial law in the region to suppress opposition and many unionists ended up fleeing to fight for the Union Army.
Regarding involvement with Native American tribes, during the American Revolutionary War era, many Cherokee, especially the younger members, allied with the British against the American colonists. However, this question specifically refers to the post-Revolutionary period, which suggests that the focus should be on the development after the conclusion of that war.
Therefore, the correct answer to what happened after the Revolutionary War in Tennessee is: b. More American settlers moved to Tennessee. The period saw a continued expansion of American settlement into former Native American lands, such as those in Tennessee, often leading to conflicts and displacement of the indigenous populations.