Ursula and her husband, Boris were legally separated in January 20 25 and their divorce became final on December 30, 2025. Ursula’s children lived with her for the first four months of 2025 but moved in with her father after Ursula was declared legally blind in April. Ursula did not contribute anything to the cost of maintaining the household in the children were living with her husband. Ursula is 40 years old. What filing status can Ursula use for her 2025 tax filing and what is