2010/ the 82 Doctor's stone tablets/ recognize/ UNESCO/ a Memory of the World.

• A. 
  In 2010, the 82 Doctor's stone tablets was recognized by UNESCO as a Memory of the World.
• B. 
  On 2010, the 82 Doctor's stone tablets were recognized by UNESCO as a Memory of the World.
• C. 
  In 2010, the 82 Doctor's stone tablets were recognized by UNESCO with a Memory of the World.
• D. 
  In 2010, the 82 Doctor's stone tablets were recognized by UNESCO as a Memory of the World.