What type of grants were issued for land claims up to 160 acres after statehood?

The correct choice pertains to pre-emption grants, which were specifically intended for settlers already residing on a piece of land without formal ownership. After statehood, these grants allowed individuals to claim up to 160 acres of land, providing them the opportunity to secure legal ownership. This was particularly important during the period of western expansion, as such grants facilitated the settlement of frontier territories by those who could demonstrate previous occupancy and improvement of the land.

The headright grants refer to a system used primarily to encourage immigration and land settlement in some states, granting land based on the number of family members or individuals a settler brought. Land grants are a more general term that doesn't specifically address the established criteria or the residency requirements tied to claiming the land. Donation grants typically involve giving land as a gift, usually from a government body to individuals or groups, rather than the exchange or claims associated with the pre-emption process.