what is the answer to this?

3. Bradley is an engineer and has two college-age children, Clint, a freshman at State University, and Abigail, a junior at Northwest University. Both Clint and Abigail are full-time students. Clint's expenses during the 2019 fall semester are as follows: $3,400 tuition, $350 books and course materials, and $1,600 room and board. Abigail's expenses for the 2019 calendar year are as follows: $10,200 tuition, $1,200 books and course materials, and $3,600 room and board. Tuition and the applicable room and board costs are paid at the beginning of each semester. Bradley spends $3,000 in 2019 to attend continuing education seminars in engineering to remain current in his field. Bradley is married, files a joint tax return, claims both children as dependents, and has a combined AGI with his wife of $111,000 for 2019. A. Determine Bradley's available education tax credit for 2019. B. Explain the purpose of these credits