The correct answer is (C) 1. An engraved design or portrait cut in relief on hard stone or gem, or the stone or gem so engraved. 2 A literary sketch, small dramatic scene, etc., in which the subject is presented or depicted. Also called a cameo role.

Examples of use:

• Cameos are frequently made from coral, shells or various gemstones.
  
  
• The famous producer acted in a minor, cameo role in each film that he produced.