Well done, but we’re waiting for your replies with the formulas. 
#ArianeGrouppic.twitter.com/gmR9jp5Q7U
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We’re starting a new theme with a really easy question. Don’t worry, the hard ones will be coming at the end of the month. We’d love to see details about this topic in our replies. #ArianeGroup #ToTheMoon 
pic.twitter.com/L8nXoFcWU4
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C!!!!
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Well done!
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Why should Moon fall onto the Earth? This question is stupid....
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The response is C, that's simple but a very interesting story
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... all of them combine?
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