r Fall 2023 Question 19 of 20 -15 View Policies Current Attempt in Progress Castle Co. needs to borrow $10 million for process improvement upgrades. Management decides to sell 20 -year bonds. They determine that the 3-month Treasury bill rate is 2.75 percent, the firm's credit rating is A, and the yield on 20 -year Treasury bonds is 1.80 percent higher than that for 3 -month Treasury bills. Bonds with an A rating are selling for 50 basis points above the 20 -year Treasury bond rate. What is the loan rate for this transaction? {:[9.55%],[5.05%],[4.55%],[7.75%]:} Attempts: 0 of 1 used