Mary (age 65) is an unmarried taxpayer who currently supports her 16 year old granddaughter who lives with her. Mary's husband Jack died in 2019. Mary has itemized deductions totaling $17,000 for the 2020 tax year. Which of the following statements correctly characterizes Mary's tax situation in 2020? Mary is an unmarried taxpayer filing as "single" and will choose to itemize deductions rather than taking the standard deduction Mary is an unmarried taxpayer filing as "head of household" and will choose to itemize deductions rather than taking the standard deduction Mary is an unmarried taxpayer filing as "head of household" and will choose the standard deduction rather than taking the itemized deductions Mary is an unmarried taxpayer filing as "Qualifying Widow/Surviving Spouse" and will choose the standard deduction rather than taking the itemized deductions