Problem 1-21 Personal and Dependency Exemptions (LO 1.6) In each of the following situations, determine whether the taxpayer(s) has/have a dependent and if so, the total amount of the child tax credit and other dependent credit (assuming no limitations apply). If an amount is zero, enter "0". Dependent? Amount of credit (Yes/No) a. Donna, a 20-year-old Yes single taxpayer, supports her mother, who lives in her own home. Her mother has income of $1,350. No b. William, age 43, and Mary, age 45, are married and support William's 19-year-old sister, who is not a student. The sister's income from a part-time job is $4,200. Yes c. Devi was divorced in 2018 and receives child support of $250 per month from her ex- husband for the support of their 8-year-old son, John, who lives with her. Devi is 45 and provides more than half of her son's support. Yes d. Wendell, an 89-year-old single taxpayer, supports his son, who is 67 years old, lives with him and earns no income. No e. Wilma, age 65, and Morris, age 66, are