Jeffery and Cassie, who are married with modified AGI of $90,000, are sending their son to his first year of college. Their total tuition and related payments during 2013 amounted to $5,500. They have not taken advantage of any other type of tax benefit related to educational expenses. Their American Opportunity Scholarship credit for 2013 is
A. $1,500.
B. $2,000.
C. $2,500.
D. $5,000.