At the End of Every Six Months for the Last

Multiple Choice

At the end of every six months for the last six years Vincent has borrowed $1,000 from Charley at an interest rate of 11% compounded semi-annually. He has not made any payments to reduce his debt. How much, including interest, does Vincent owe Charley now?

A) $19,920
B) $16,386
C) $22,714
D) $8,618
E) $15,536