Answer:
The correct answer is letter "A": Is based on the current yield to maturity of the firm's outstanding bonds.
Explanation:
The cost of debt is the interest a company pays on its borrowers. It is expressed as a percentage rate. The cost of debt can be calculated as before-tax rate or an after-tax rate. Most of the time, the cost of debt is the before-tax rate of the cost of debt because that is how the company's cost of debt is calculated. That calculation implies considering the average interest paid on all the company's debts, including outstanding bonds.