Sullivan's wife, Susan, died four years ago. Sullivan has not remarried and has found a new person to be his possible wife in 2022 . In 2021 , Sullivan received $82,000 of salary from his employer and $4,000 of business income (his net schedule C income); his total SE tax on line 23 was 865 . He also had the following expenses: 1. Total medical expenses $12,000; insurance reimbursed only $4,000. 2. Federal and State income taxes withheld from his salary were $10,000 and $6,000, respectively. 3. He paid real state taxes of $4,200 and mortgage interest of $6,000. 4. Charitable cash donations totaling $650 to qualified charities. 5 . Gambling expenses of $3,000; had not gambling winning. A. What is Sullivan's AGI for 2021 ? B. What is his total of itemized deductions. C. His taxable income. 4. His total tax liability (line 24). 5. His refund or balance due