The correct description of the Headright System is:
Free land was given to white heads of households over 21.
The Headright System, used primarily in the colonies of Virginia and Georgia, granted land to settlers, particularly to encourage the settlement of land. Initially, it provided 50 acres of land to any man who could pay for his passage to America. Over time, it expanded to grant land to anyone who could meet certain conditions, typically favoring white male heads of households.