In 2020, Elaine paid $2,840 of tuition and $800 for books for her dependent son to attend State University this past fall as a freshman. Elaine files a joint return with her husband. What is the maximum American opportunity tax credit that Elaine can claim for the tuition payment and books in each of the following alternative situations? (Leave no answer blank. Enter zero if applicable.)

(a). Elaines AGI is $103,500.(b). Elaines AGI is $172,000. (Round your intermediate calculations to the nearest whole dollar amount.) (c.) Elaines AGI is $200,500.