You plan to take out a 30-year fixed rate mortgage for S 175,000. Let P r be your monthy payment if the terest rate is r% per year, compounded monthly interpret the equations (a) P(4) 835.48 and (b) P (4)-100 89 (a) Interpret P(4)-835.48 Select the correct answer below 0 A. If O B. If the interest rate on the mortgage is 4%, the monthly payment wil be S100 89 C. If the interest rate on the mortgage is 5%, the monthly payment will be $100.89 the interest rate on the mortgage is 5% the monthly payment will be $835 48 D. If the interest rate on the mortgage is 4%, the monthly payment will be S835 48 (b) Interpret P'(4)- 100.89. Select the correct answer below A. If the interest rate decreases from 5% to 4% the monthly payment will increase by approximately S835 48 O B. If the interest rate decreases from 5% to 4%, the monthly payment will be approximately S83548 C. If the interest rate increases from 4% to 5%, the monthly payment will decrease by approximately S100 89 0 D. If the interest rate increases from 4% to 5%, the monthly payment will increase by approximately S100 89