Textbook Problem Materials 4-42 Filing Status and Standard Deduction. Determine the most beneficial filing status and the standard deduction for each of the following taxpayers for 2021 (select all that apply): a. Mis a 54-year-old unmarried widow whose spouse died in 2018. During all of 2021, M's 15-year-old son, who is her dependent, lives with her. Click for List Number b. Sis a 67-year-old bachelor who lives in New York City. S pays more than half the cost of maintaining a home in Tampa, Florida, for his 89-year-old mother. He is entitled to treat her as a dependent under a multiple-support agreement executed by his brother, his sister, and himself. Click for List Number C. R is a widower whose wife died in 2020. R maintained a household for his three dependent children during 2021 and provided 100% of the cost of the household. Click for List Number d. Jis divorced and has custody of his 9-year-old child. J provides more than half the cost of the home in which he lives with his child, but his ex-wife is entitled to the child as her dependent for the current year. Click for List Number