Laura, an unmarried taxpayer with AGI of $202,000, claims four dependent children, all under age 17. Click the icon to view the Ai threshold amounts.) Requirement What is the amount of her child tax credit? (Assume the year is 2021. Round intermediary calculation up to the next whole number) Laura's 2021 child tax credit is Threshold amounts Joint returns $ 400,000 200,000 200,000 Single taxpayers Married persons filing separate returns