Japan strongly and passionately defended two Jima because it was considered part of the Japanese homeland.
Back then, they didn't want to lose the slaves because they were the way of getting money sorry if its wrong the question wasnt detailed enough
"A" would be the correct answer. Even though the main goal of the voyage was to find a different sea route to Asia. Bartolome and other Portuguese explorer have also made stops along the African coast and started to realize how could of an alternative they would be compared to the Mediterranean trade routes
These are all pretty edgy answers, so I hope I am right xD
The social costs were less to the confederacy because they hand less deaths than the union. the union had more deaths and wounded in every category than the confederacy.
the answer is religeous differences
hope this helps u if its not to late to get the answer correct