(18" MCQ-12522 In which of the following scenarios would the head of household filing status be available to the taxpayer? A single taxpayer maintains a separate home for his parent, who qualifies as a dependent. A taxpayer with no dependents is the surviving spouse of an individual who died in the current year. An unmarried taxpayer maintains a household with a 28-year-old son, who earned $10,000 during the tax year. A single taxpayer maintains a household that is the principal home for five months of the year for his disabled child