Under the homestead act, a homesteader was required to improve a parcel of land by: * a starting a business on it.* b building an area to keep livestock.* c creating access to a public road.* d building a house and bettering the land.

Under the Homestead Act, a homesteader was required to improve a parcel of land by D. building a house and bettering the land.

Explanation: The Homestead Acts were passed in the United States and they allowed applicants to own lands that belonged to the government.  These laws were enacted from the second half of the nineteenth century to the first years of the twentieth century. More than 1.5 million people acquired their lands due to the Homestead Acts; however, there were some requirements for homesteaders: one of them was building a house on the designated land and running a farm on it in order to improve this land.