With regard to the child tax credit which of the following statements is correct? The child tax credit is based on the number of the taxpayer's qualifying children under age 17. The maximum credit is $1,500 per qualifying child. A qualifying child does not need to be a citizen of the United States. A qualifying child does not need to be a dependent of the taxpayer claiming the credit. The credit is phased out by $50 for every $1,000 or part thereof in excess of AGI of $120,000