Quote from TGregg:
The question is "Qu'est-ce qul gravite autour de la Terra?"
Gravite does not equal rotate. Or orbit. It's gravity. They are asking something very much like which body's gravity is the strongest on Earth.
Your theory seems logical to me, but since you don't speak French (nor do I), it may be incorrect nevertheless.
Snopes seems to back up the translation- negating your theory:
http://www.snopes.com/radiotv/gameshows/millionaire.asp
This site does too:
http://www.who-wants-to-be-a-millionaire-game-online.com/millionaire-trivia-game.htm
P.S. Gord is 100% correct.
