Birds and bugs are alike

According to the riddle of the rosetta stone, what problem did both jean-francois champollion and sylvestre de sacy face in their attempts to decipher the writings on the rosetta stone?

How does visiting the place of the gods affect the narrator? a. he discovers that it is unwise to have an inquiring mind b. he learns that there is nothing supernatural to fear in the destroyed city c. he renounces everything he learned from the priests and his father d. he understands that the past has nothing of interest for people of the present

In which two sentences does the author use an ironic tone toward the subject