You Have a 30-Year, $175,000 Mortgage at 7

You have a 30-year, $175,000 mortgage at 7.5 percent interest. What is the amount of your mortgage prepayment if you pay $1,500 as your second mortgage payment? Assume your first payment was the agreed upon amount.

A) $241.93
B) $248.25
C) $265.44
D) $276.37
E) $289.65