All of the following individuals can file as head of household EXCEPT: O Mario is a married taxpayer who lives with and provides more than half the support for his eleven-year-old daughter. He also provided more than half the cost of maintaining their household. Mario's wife moved to Colorado permanently in March and has had no further contact with the family. O Leah is an unmarried taxpayer who pays all the costs to maintain her home and provides more than half the support for her four- year-old son with whom she lives. O Derrick is a married taxpayer who lives with his mother-in-law, Renee, and his ten-year-old daughter in Renee's home. Derrick provides more than half the cost of maintaining the household and provides more than half of his daughter's support. Derrick's wife is in the military. She was is complete. Corey is a married father who lives with and provides all of the support for his two children, ages 6 and 10. Corey and his estranged wife have not lived in the same residence for at least two years.