Based on the following spot rates: Year 1 Spot Rates 2% 3% 2 3 4% 5% Sara purchased a deferred interest rate swap with a level notional amount of 150000. Under the swap arrangement, she will swap a variable interest rate for a fixed interest rate during the last two years of a four-year swap. No swapping of interest rates will occur during the first two years. The variable interest rate during each one-year settlement period will be the one-year spot interest rate at the start of the year Determine the swap rate. Select one: O A. 7.2% OB. 7.0% OC. 6.4% O D. 6.8% O E 6.6%