i need the answer quickly

390. Billy Clark is an investment manager at the Sachsenhausen Investment Bank based in Dusseldorf Clark manages a pool of mortgages and the assets constructed with the pool. If the pool prepaid 1.1% of its principal above its amortizing principal as the percentage of total outstanding principal in the month of February, then which of the following is the appropriate annualized constant prepayment rate he can come up with? A. 0.0302 B. 0.1243 C. 0.132 D. 0.1402