20. Shortly after the investor in the question immediately above buys the mortgage note, the remaining balance is paid off by the original borrower (that is, it is paid off before maturity). If there is no prepayment penalty, the early payment will:

a. increase the yield to the investor.

b. decrease the yield to the investor.

c. have no impact on the yield to the investor.

d. have an undeterminable impact on the yield to the investor.