TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: APPROBATION 
Clue: Japanese consul Chiune Sugihara, who saved hundreds of Jews in WWII, bears the title "Righteous" this

SOLUTION: gentile

PROBLEM: Category: JEWELRY 
Clue: An engraved gem with a design that projects from the surface, it can be carved from onyx, agate or sardonyx

SOLUTION: a cameo

PROBLEM: Category: "H.H." 
Clue: The famous hanging man in the Krazy Glue commercial is hanging by this

SOLUTION:
hard hat