Counterparties AA and BB face the following borrowing costs in the marketplace: Fixed Floating AA 5.60% E 3.80% BB 6.60% 4.05% AA desires a floating rate loan while BB desires a fixed rate loan. A dealer stands ready to pay 5.90% fixed rate against receiving a floating rate of 3.85% or receive a fixed rate of 6.30% against paying a floating rate of 4%. Assume that each party exploits its relative advantage and swaps with the other as proposed by the dealer. The net cost of desired financing for AA and BB are_ and_respectively. a. 3.55% and 6.40% b.4.75% and 7.50% c. 4 40% and 7.50% d. 4.40% and 7.60% e. None of the above