Answer: B. If a firm has been suffering accounting losses that are expected to continue into the foreseeable future, and therefore its tax rate is zero, then it is possible for the after-tax cost of preferred stock to be less than the after-tax cost of debt.
Explanation: A firm suffering from losses due to accounting that are expected to continued in the future then the prefect stock will be less than cost of debt after tax.
The option " B* is the only correct statement among the others .