They all were controlled by Spain
Slaves were used in the American colonies to perform labor because A. there were not enough workers.
America needed workers, but there were not enough people willing to perform such difficult jobs for basically no money at all, which is why they brought slaves who had to work for free.
E because if they were in a battle they would loose because of the desease
the answer is b: burial places
Manifest Destiny was first used by John O'Sullivan in an 1845 newspaper in New York.