Pete's Boats Has Beginning Long-Term Debt of $647 and Ending

Pete's Boats has beginning long-term debt of $647 and ending long-term debt of $749.The beginning and ending total debt balances are $801 and $768,respectively.The interest paid is $54.What is the amount of the cash flow to the creditors?

A) -$10
B) -$48
C) $21
D) $156
E) $87