Assume that you have entered into a swap agreement for a notional of 100M USD under which every 6 months you agree to pay LIBOR and receive 4% fixed. On the date you signed the contract LIBOR is 3%. Six months later LIBOR is 3.5%. Your theoretical payment at the first payment date equals to A)2M USD. B)1.75M USD C)1.5M USD D)0.25M USD