Which sentence from The Riddle of the Rosetta Stone best supports the prediction that Jean-François Champollion would continue his quest to decipher the hieroglyphs for many years despite potential obstacles? “By the time he was seventeen, Champollion had learned Greek, Hebrew, Arabic, Sanskrit, Persian, and other Near Eastern languages, as well as English, German, and Italian.” “Champollion hotly denied these suggestions, claiming that he had arrived at his new position entirely on his own.” “He worked on them in his spare time, even after returning to Grenoble and taking a job as a teacher.” “However the change came about, it provided Champollion with a new key to the puzzle of the hieroglyphs.”