During 2019, Cardi B's employer withheld $4,000 from her wages for state income tax. Cardi B claimed the $6,000 as an itemized deduction on her 2019 federal income tax return. Her total itemized deductions for 2019 were $35.000. Cardi B's taxable income for 2020 was $200,000. Cardi B received the $2,000 as a refund from the state during 2020. What amount must Cardi B include in income in 2020? A. $0 B. $2,000 C. $3,000 D. $4,000 E. $6,000