Pearce$$s Cricket Farm issued a $30-$year, $9\%$ semiannual bond $3$ years ago. The bond currently sells for $93\%$ of its face value. The company$$s tax rate is $20\%.$ Assume the par value of the bond is $$1,000.$ a$.$ What is the pre$-$tax cost of debt? $($Do not round intermediate calculations. Round the final answer to $3$ decimal places.$)$ Pre$-$tax cost of debt $\%$ b$.$ What is the after$-$tax cost of debt? $($Do not round intermediate calculations. Round the final answer to $3$ decimal places.$)$ After$-$tax cost of debt $\%$ c$.$ Which is more relevant, the pre$-$tax or the after$-$tax cost of debt? multiple choice After$-$tax cost of debt Pre$-$tax cost of debt