This is a drawn diagram of the rosetta stone. in each section, a, b, and c, a similar text was written, but in different languages. the text in section a was written in which of the following languages?
a. greek
c. egyptian
b. demotic
d. english

The Rosetta Stone was written in three different languages.  Most likely on your diagram it goes like this:
A - is Egyptian              /\ top
B - is Demotic                  to
and - C is Greek           \/ bottom

So for this question the answer would be letter "C. Egyptian"
Hope this helps you out! Have a blessed day :)

c. Egyptian

Explanation:

The content of the Rosetta Stone is written in three different languages, as the question says, in order of placement in the stone:

Egyptian - the main language in Ancient Egypt, also known as Hieroglyphs writing. It was used among the priests and members of the religious group. Demotic - it was the common language and used among the people Greek - it was used in the political relations

The Rosetta Stone was deciphered by Jean-François Champollion in 1822. He was only able to do that because he found similarities in the Demotic and Greek languages. Then he created an alphabet for the Hieroglyphs, finally understanding the code.

Iwould say d) signed unknown street singers who brought original songs to record.

Ithink that c would make the most amount of sense.