The correct answer is B. Debentures.
Debentures are a type of long-term debt instrument that a company issues to raise money. They are typically unsecured, meaning that the company does not have to pledge any specific assets as collateral. Debentures are usually issued in the form of bonds, which are certificates that represent a debt obligation.
Creditors are individuals or businesses that have lent money to a company. They are typically unsecured creditors, meaning that they do not have any specific assets that they can seize if the company defaults on its loan.
Overdrafts are a type of short-term loan that a company can take out from its bank. They are typically used to cover temporary cash flow shortfalls.
Bills payable are short-term debts that a company owes to its suppliers. They are typically due within 30 days.
In conclusion, debentures are the only option that is an example of a long-term liability.