Both Champollion and Young struggled with a similar problem while trying to decipher the
Rosetta Stone. What was it?
They did not know the names of many ancient Egyptian
rulers.
They did not have enough help from experts on ancient
Egypt.
They did not know enough about the customs and laws
of ancient Egypt.
They did not always know how the ancient Egyptians
spelled and pronounced names.

A, they did not know the names of many ancient Egyptian rulers

answer: what was the us involvement in ww1? although the u.s. tried to remain neutral when ww1 broke out, it finally joined on april 6, 1917 after declaring war on germany. the reason for america to become involved in ww1 was germany's unrestricted submarine warfare, which had already sunk several american merchant ships.

explanation:

i think the answer is a and i hope this ; ))