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 simplicity, answers should be in all lower cased letters.

Category: HOTELS 
Clue: We'll tell you "diplomatically" that this L.A. hotel was the home of the Coconut Grove nightclub
the ambassador hotel

Category: "OUCH"! 
Clue: In Ancient Egyptian inscription, this oval figure held the names of royal personages
cartouche

Category: GET OUT YOUR BIBLES 
Clue: It's the sea in the line from Exodus "The sea covered them, they sank as lead in the mighty waters"

the red sea