XYZ Ltd. operates in the FMCG sector in the South Indian market. To expand into Northern India, the company raises an additional capital of $\text{Rs. }20,00,000$. It raises $\text{Rs. }12,00,000$ by issuing $10\%$ Debentures of $\text{Rs. }100$ each at a discount of $10\%$, redeemable after $6$ years. The remaining funds are raised by issuing perpetual $5\%$ Debentures of $\text{Rs. }8,00,000$ of $\text{Rs. }100$ each at a $15\%$ premium. After six years of successful operations, the company takes a loan of $\text{Rs. }5,00,000$ from PNB, pledging $5\%$ Debentures of $\text{Rs. }8,00,000$ as collateral security. The loan is fully repaid within two years.What are debentures that are perpetual in nature and have no fixed maturity date for repayment called?

1. A
   Irredeemable Debentures
2. B
   Convertible Debentures
3. C
   Redeemable Debentures
4. D
   Bearer Debentures