John and Mary Have Three Children: Aaron (Age 14), Anna

Multiple Choice

John and Mary have three children: Aaron (age 14) , Anna (age 16) , and Tammy (age 21) . Anna works after school and earned $4,000 in 2018. Tammy works 30 hours per week and is a part-time student at the local community college earning $8,400 in 2018. If John and Mary's AGI in 2018 is $200,000, how much can they claim on their joint tax return for the child tax credit?

A) $6,000
B) $4,500
C) $4,000
D) $2,000