1.Donnna is single and lives alone. She maintains the household where her parents reside. Only one of her parents qualifies as her dependent.

2.Donna is a divorced and maintains the household where she and her unmarriedson live. Donnas son does not qualify as her dependent but meets all the requirements of a qualifying child

3.Donna is divorced and maintains the household where she and her married son live her son files joint retirn with his wife.

4.Donna is married, but her husband moved out early 2020 and has not been in contract with her since. Donna and her estranged husband have no dependents.

What are the filing status for Donna?