I thank number two but not sure
Answer:
d. by acknowledging that some people disagree with his position
Explanation:
Roberto addresses this new information "by acknowledging that some people disagree with his position"
Roberto cannot ignore the new source or call it foolish but can only acknowledge it and then finds better reasons to support his own claims above what the new information says.
The Peloponnesian War, 431–404 BC, was a decisive struggle in ancient Greece between Athens and Sparta. It ruined Athens. The rivalry between Athens' maritime domain and Sparta's land empire was of long standing
Answer:
I can help u out in the comments but imma need a lil bit more to go off of.