Mason Paid $4,100 of Interest on a Loan That Paid

Mason paid $4,100 of interest on a loan that paid tuition for him to attend a private university this year. How much of this payment can Mason deduct as interest expense on an educational loan if he files single and reports modified AGI of $90,000?

A) $4,100
B) $4,000
C) $2,667
D) $2,000
E) None of these.