Please, help with this problem. All green sections are correct.

David and Lilly Fernandez have determined their tax liability on their joint tax return to be $2,100. They have made prepayments of $1,900, they receive a child tax credit of $500, and a recovery rebate credit of $2,900 (they did not receive this in advance). What is the amount of their tax refund or taxes due? What is the amount of their tax refund or taxes due? Answer is not complete. (1) (2) (3) (3) Description Total tax Prepayments Child tax credit Recovery rebate credit Tax refund OOO Amount $ 2,100 1,900 500 X 2,900 X