Based on the details in The Riddle of the Rosetta Stone, how did the career of Jean-Baptiste Fourier differ from that of Jacques-Joseph Champollion?

Jean-Baptiste Fourier accompanied Napoleon on the expedition to Egypt, while Jacques-Joseph Champollion did not. The other choices do not describe a difference in their careers: Champollion, not Fourier, studied with Sylvestre de Sacy, and Champollion was known for studying languages and Egyptian subjects.

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