Ketones are prepared by which of the following name reaction?

• A. Clemmensen‚Äö√Ñ√∂‚àö√ë‚àö¬•s reduction
• B. Cannizzaro reaction
• C. Rosenmund‚Äö√Ñ√∂‚àö√ë‚àö¬•s reduction
• D. Oppenaur‚Äö√Ñ√∂‚àö√ë‚àö¬•s oxidation