Read the excerpt from The Riddle of the Rosetta Stone, by James Cross Giblin.
Another, more complete copy of the same decree that appeared on the Stone was found on a slab at Philae in 1848. Fuller
translations of the hieroglyphic text soon followed. A Latin version came out in 1851, a French one in 1867, and an English one
in 1871. But many of the hieroglyphs on this slab were missing also, so only a few words and phrases could be added to what
was already known from the Rosetta Stone.
Which statement best expresses the central idea of the excerpt?

a A complete copy of the Rosetta Stone decree was found in 1848, and the code was fully deciphered.
b The discovery of a more complete copy of the Rosetta Stone decree resulted in fuller translations.
c It took several years for an English version of the Rosetta Stone to come out after its discovery.
d Because so many hieroglyphics were missing from the Philae copy of the Rosetta Stone, it was unreadable.​