Mike borrows X from a bank that charges an effective rate of 10 % a year. He repays the loan with payments at the end of every six months for n years. The interest paid in the first payments is $ 2,928.53. The interest paid in the last payment is $ 209.83. Find n.

answers:

A. 11 years

B.12 years

C. 13 years

D. 14 years

E. 15 years