What was a notable impact of Bacon's Rebellion?

The correct answer highlights a significant shift in labor systems in colonial Virginia following Bacon's Rebellion in 1676. The rebellion was sparked by frustrations among frontier settlers, particularly over issues such as land and protection from Native American incursions.

In the wake of the rebellion, colonial leaders recognized that their reliance on indentured servants, who sometimes revolted or sought better terms after their period of servitude, posed a risk. As a result, the transition to African slave labor became more pronounced. Slavery provided a more stable and controllable labor force, as enslaved individuals were seen as a permanent source of labor with no expectation for freedom after a set period, unlike indentured servants. This shift had profound implications for the social and economic structure of the colonies, leading to an increased reliance on slavery that would persist for generations and would play a critical role in the development of the American South.

The other options, while they reflect potential outcomes of social changes, do not accurately capture the most notable impact of Bacon's Rebellion. There was no significant reintegration of Native Americans or expansion of their lands following the rebellion; in fact, tensions increased. The rights of indentured servants did not increase markedly as a result, but rather, the focus shifted