Why was count charles henri d'estaing's attempt to seize savannah in 1779 a failure?
a) georgia slaves infiltrated allied ships and sabotaged d'estaing's efforts.
b) at the time of the attempted siege, d'estaing only had one hundred soldiers.
c) georgia tory spies warned general prevost that count d'estaing was on his way.
d) inadvertently, count d'estaing gave the british time to bolster their defenses

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion

i believe your answer is d)