In which of the following instruments the investor has the option to either convert these debentures into shares at price decided by the issuer/agreed upon at the time of issue. A. Non Convertible Debentures (NCD) B. Partly Convertible Debentures (PCD) C. Fully convertible Debentures (FCD) D. Optionally Convertible Debentures (OCD) E. None of the Above