For a Pool of Mortgages (With No Defaults),which of the Following

For a pool of mortgages (with no defaults) ,which of the following is false?

A) the total amount of principal (both scheduled and prepayments) that will be paid from the pool will depend upon changes in the interest rates
B) changes in the interest rate may cause the principal payments to be delayed or accelerated
C) the interest payments in any one month will depend upon the amount of principal outstanding at the beginning of the month
D) changes in the market rate of interest will affect the timing of prepayments