Nancy, an unmarried taxpayer with AGI of $207.000 claims three dependent children, all under age 17 (Click the icon to view the AGI threshold amounts) Requirement What is the amount of her child tax credit? (Assume the year is 2021. Round Intermediary calculations up to the next whole number) RE Nancy's 2021 child tax credit is Reference Threshold amounts: Joint returns $ 400,000 200,000 Single taxpayers Married persons filing separate returns 200,000