Which of the following nuclear materials is fissile?

• A. Uranium‚Äö√Ö¬™¬¨‚â§38
• B. Thorium‚Äö√Ö¬™¬¨‚â§32
• C. Plutonium‚Äö√Ö¬™¬¨‚â§39
• D. None of these