Ms. Kilo is an unmarried individual. She has $219,344 taxable income in 2020. Compute Ms. Kilo's regular tax liability if she files as a single taxpayer and if she files as a surviving spouse. Select one: A. Single $70,190; surviving spouse $52,642 B. Single $55,990; surviving spouse $42,222 C. Single $51,206; surviving spouse $52,460 D. None of these choices are correct