Rob's student loan balance was $8,000 at the beginning of the year. Total loan payments in 2019 were $3,280, of which $2,520 represented the repayment of the principal on the loan. How much can Rob claim as a 15% non-refundable tax credit with respect to this student loan on his 2019 Federal personal income tax return? O O $378 $150 $250 O O $114 $198