The statement that best explains the effects of the Yamasee War on the restructuring of settlements and shift in power in South Carolina is: Indigenous power declined, while colonial power increased.
The Yamasee War (1715-1717) was a conflict between several Indigenous tribes and British settlers in South Carolina. After the war, many Indigenous groups were weakened, and their ability to resist colonial expansion diminished, leading to an increase in colonial power and control over the region.