A swap is initiated between Microsoft and Intel in which Microsoft receives a 6-month LIBOR and pays a fixed rate for every 6 months for 1 year on a notional principal of $100 millions. If assuming that 6-month, 12-month, 18- month spot rates (zero rates) are 4%, 4.5%, 4.8% with continuous compounding, respectively. The swap rate under this swap should be closest to Select one: a. 4.25% b.4.55% c. 5.00% d. 4.75%