Please help

According to the riddle of Rosetta Stone what causes the French scholars to become tremendously excited when they first glimpse the writing on the Rosetta Stone slab?
- is it the first time the French scholars have received or study anything as old as the Rosetta Stone
-Is it the first time difference colors have glimpsed the writings they have heard about the Rosetta Stone
-Is it the first time the front scholars have seen the Greek alphabet up here together with the hieroglyphs
- is it the first time the French scholars have studied in inscription that consist of Egyptian hieroglyphs