Which allowable filing status is most advantageous to samantha?

I believe the answer is: Head of household allowance

The title of head of household allowance is given to the person that become the primary breadwinner within a family. People who held the status as head of household allowance tend to have lower taxable income that make them able to obtain higher amount of tax refund.

The options for this question are:A. Qualifying Widow B. Single C. Married Filing Separately D. Head of Household

The answer for this question is A, qualifying widow