e. None of the above 12. John, a single father, has AGI of $81,000 in 2019. During the year, he pays 14 qualified tuition for his dependent son, who just started attending Small University. What is John's American Opportunity tax credit for 2019? a. $0 b. $2,000 c. $2,250 d. $2,500 e. Some other amount (90,000 -81,000/10,000) x 2,500)