Suppose Bank Marginal currently has $250 million in regular savings deposits. The bank currently pays a 2.50% interest rate on savings. The bank estimates that if it raises the rate on savings deposits to 3.00%, its regular savings deposits would increase by $100 million. What would the marginal cost be for the additional funds raised? OA) 2.50% B) 2.75% OC) 3.00% OD) 3.70% OE) 4.25% OF) 5.40%