A removes the double negative by replacing “nothing” with “anything”. C also removes the double negative but it’s not grammatically correct so A is the best choice.
B.his bestfriend ,Arthur Hallam
The countries that existed in Ancient Greece were Athens, Sparta,
Thebes, Eretria, Corinth, Chalcis and Syracuse. Most notable of these
were the countries of Athens and Sparta, because it was the armies of
these countries that fought against the Persians during the war.
Answer:
: to hold the attention of (someone) entirely
: to interest or amaze (someone) so much that nothing else is seen or noticed.